Dissimilation

When an {{IPA|/r/}} sound occurs along with another in the middle of a word in rhotic dialects of English, the most weakly-stressed tends to drop out, as in "{{not a typo|beserk}}" for berserk, "{{not a typo|suprise}}" for surprise, "{{not a typo|paticular}}" for particular, and "{{not a typo|govenor}}" for governor"{{IPA|/r/}} Dissimilation" in [https://linguistlist.org/issues/17/17-2235/ The Linguist List, 3 Aug 2006]. – this does not affect the pronunciation of government, which has only one {{IPA|/r/}}, but English government tends to be pronounced "{{not a typo|goverment}}", dropping out the first n. This phenomenon will also not affect the unstressed syllable in words like surfer or brother since they come at the end of the word.

In English, r-deletion occurs when a syllable is unstressed and {{IPA|/r/}} may drop out altogether, as in "{{not a typo|deteriate}}" for deteriorate and "{{not a typo|tempature}}" for temperature, a process called haplology. When the {{IPA|/r/}} is found in {{IPA|/bru/}}, it may change to {{IPA|/j/}}. ({{Abbr|e.g.|For example}}, {{not a typo|Febyuary}} → February, which has been explained by phonotactic factors or alternatively by morphological analogy with more common sequences such as January. {{Abbr|Cf.|Compare to}} nucular, which may have arisen through an analogous process){{cite web|last=Pinker|first=Steven|date=Oct 4, 2008|title=Everything You Heard Is Wrong|url=http://pinker.wjh.harvard.edu/articles/media/2008_Palin_language.html|access-date=2013-11-15|archive-url=https://web.archive.org/web/20150519065040/http://pinker.wjh.harvard.edu/articles/media/2008_Palin_language.html|archive-date=2015-05-19}}{{cite web|last=Zwicky|first=Arnold|date=March 21, 2005|title=Axe a stupid question|url=http://itre.cis.upenn.edu/~myl/languagelog/archives/001999.html|access-date=2008-09-14}}{{cite web|last=Nunberg|first=Geoffrey|date=October 2, 2002|title=Going Nucular|url=http://people.ischool.berkeley.edu/~nunberg/nucular.html|access-date=2008-09-14}}

r-deletion is not universally applied in regards to primary and tertiary stress. For example, forward is typically affected ({{not a typo|foward}}), but foreword and Harvard are not. While in the case of foreword, its lack of r-deletion may be due to its lower-frequency usage, this inconsistency may also indicate that the process is one still in flux and not yet fully established.

An example where a relatively old case of phonetic dissimilation has been artificially undone in the spelling is English {{linktext|colonel}}, whose standard pronunciation is {{IPA|[ˈkɝnəl]}} (with the r sound) in North-American English, or {{IPA|[ˈkɜːnəl]}} in RP. It was formerly spelt coronel and is a borrowing from French {{wikt-lang|frm|coronnel}}, which arose as a result of dissimilation from Italian {{wikt-lang|it|colonnello}}."Pronunciation Note" at [http://dictionary.reference.com/browse/colonel Colonel @ Dictionary.Reference.com].

• Latin {{wikt-lang|la|peregrinus|peregrinus}} > Old French {{wikt-lang|fro|pelegrin|pelegrin}} (and the Italian {{wikt-lang|it|pellegrino|pellegrino}} and Sicilian {{wikt-lang|scn|piḍḍigrinu|piḍḍigrinu}}) which gave rise to the English {{linktext|pilgrim}}.{{cn|date=March 2021}}

{{urs|date=March 2021}}

There are several hypotheses on the cause of dissimilation. According to John Ohala, listeners are confused by sounds with long-distance acoustic effects. In the case of English {{IPA|/r/}}, rhoticization spreads across much of the word: in rapid speech, many of the vowels may sound as if they had an r. It may be difficult to tell whether a word has one source of rhoticity or two. When there are two, a listener might wrongly interpret one as an acoustic effect of the other, and so mentally filter it out.

This factoring out of coarticulatory effects has been experimentally replicated. For example, Greek {{transl|el|pakhu-}} ({{lang|el|παχυ-}}) {{gloss|thick}} derives from an earlier *{{transl|el|phakhu-}}. When test subjects are asked to say the *{{transl|el|phakhu-}} form in casual speech, the aspiration from both consonants pervades both syllables, making the vowels breathy.{{Citation needed|date=May 2008}} Listeners hear a single effect, breathy voiced vowels, and attribute it to one rather than both of the consonants, as they assume the breathiness on the other syllable to be a long-distance coarticulatory effect, thus replicating the historical change in the Greek word.{{Citation needed|date=May 2008}}

If Ohala is correct, one might expect to find dissimilation in other languages with other sounds that frequently cause long-distance effects, such as nasalization and pharyngealization.

{{urs|date=March 2021}}

Dissimilation, like assimilation, may involve a change in pronunciation relative to a segment that is adjacent to the affected segment or at a distance, and may involve a change relative to a preceding or a following segment. As with assimilation, {{em|anticipatory}} dissimilation is much more common than {{em|lag}} dissimilation, but unlike assimilation, most dissimilation is triggered by non-contiguous segments. Also, while many kinds of assimilation have the character of a sound law, few dissimilations do; most are in the nature of accidents that befall a particular lexical item.

Anticipatory dissimilation at a distance (by far the most common):

• Latin *{{lang|la|medio-diēs}} ({{gloss|mid-day}}, i.e. "noon"; also "south") became {{lang|la|merīdiēs}}. Latin {{lang|la|venēnum}} "poison" > Italian {{lang|it|veleno}}. This category includes a rare example of a systematic sound law, the dissimilation of aspirates in Greek and Sanskrit known as Grassmann's Law: *thi-thē-mi {{gloss|I put}} (with a reduplicated prefix) > Greek {{transl|el|tí-thē-mi}} ({{lang|el|τίθημι}}), *phakhu {{gloss|thick}} > Greek {{transl|el|pakhus}} ({{lang|el|παχύς}}), *sekhō {{gloss|I have}} > *hekhō > Greek {{transl|el|ékhō}} ({{lang|el|ἔχω}}; cf. future *hekh-s-ō > {{transl|el|héksō}} {{lang|el|ἕξω}}). Some apparent cases are problematic, as in English "eksetera" for etcetera, which may rather be contamination from the numerous forms in eks- (or a combination of influences), though the common misspelling "ect." implies dissimilation.

Anticipatory dissimilation from a contiguous segment (very rare):

• The change from fricative to stop articulation in a sequence of fricatives may belong here: German {{lang|de|sechs}} {{IPA|/zeks/}} (as evidenced by the spelling, the {{IPA|/k/}} was previously a fricative). In Sanskrit in any original sequence of two sibilants the first became a stop (often with further developments): root vas- {{gloss|dress}}, fut. vas-sya- > vatsya-; *wiś-s {{gloss|clan}} (nom.sg.) > *viťś > *viṭṣ > viṭ (final clusters are simplified); *wiś-su locative pl. > *viṭṣu > vikṣu. English amphitheater is very commonly pronounced "{{not a typo|ampitheater}}" (though this may be explained by spelling pronunciation). Russian {{lang|ru|конфорка}} {{IPA|[kɐnˈforkə]}} {{gloss|stove burner}} is from Dutch {{lang|nl|komfoor}} {{gloss|brazier}}.

Lag dissimilation at a distance (fairly common):

• English purple is in medieval English as purpul and purpure (in medieval French {{lang|frm|porpre}}) and comes from classical Latin {{lang|la|purpura}} {{gloss|purple}} with dissimilation of {{IPA|/r/}} to {{IPA|/L/}}. Latin {{lang|la|rārus}} {{gloss|rare}} > Italian {{lang|it|rado}}. Cardamom is commonly pronounced cardamon. In Middle English, in some words ending in -n preceded by a coronal consonant the -n changed to -m: seldom, random, venom. English marble is ultimately from Latin {{lang|la|marmor}}. Russian {{lang|ru|февраль}} {{IPA|/fevrˈalʲ/}} {{gloss|February}} is from Latin {{lang|la|Februārius}}.
• In Spanish, interchanges between {{IPA|/r/}} and {{IPA|/l/}} are common; for a list, see {{slink|History of the Spanish language|Interchange of the liquids /l/ and /r/}}. In Basque, dissimilation is frequent as well.

Lag dissimilation from a contiguous segment (very rare):

• Latin {{lang|la|hominem}} ("man", acc.) > Old Spanish {{lang|osp|omne}} > omre > Spanish {{lang|es|hombre}}
• Latin {{lang|la|nomine}} ("name", abl.) > nomre > Spanish {{lang|es|nombre}}
• English chimney (standard) > chim(b)ley (dialectal)
• Proto-Slavic {{lang|sla-x-proto|*svobodà}} {{gloss|freedom}} > Slovak {{lang|sk|sloboda}} (vs. Czech {{lang|cs|svoboda}})
• In Irish, many dialects regularly change the sequence {{IPA|/mn/}} to {{IPA|/mɾ/}}

{{urs|date=March 2021}}

When, through sound change, elements of a grammatical paradigm start to conflate in a way that is not easily remedied through re-wording, the forms may dissimilate. For example, in modern Korean the vowels {{IPA|/e/}} and {{IPA|/ɛ/}} are merging for many people in the capital Seoul, and concurrently the second-person pronoun {{lang|ko|네}} {{IPA|/ne/}} {{gloss|your}} is shifting to {{lang|ko|니}} {{IPA|/ni/}} to avoid confusion with the first-person pronoun {{lang|ko|내}} {{IPA|/nɛ/}} {{gloss|my}}.

Similarly, it appears that English she, historically heo, may have acquired its modern sh form through dissimilation from he, though it is not clear whether the mechanism was idiosyncratic sound change (palatalization) of heo, or substitution of heo with the feminine demonstrative pronoun seo.

• Assimilation (linguistics)

{{reflist}}

• Crowley, Terry. (1997) An Introduction to Historical Linguistics. 3rd edition. Oxford University Press.
• [https://www.sfu.ca/%7Ealderete/pubs/alderete2003_dissimilationIELArticle.pdf Dissimilation] (International Encyclopedia of Linguistics, 2nd ed.)

Category:Phonology

Category:Sound changes