Banach

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{{wiktionary|Banach}}

Banach (pronounced {{IPA|de|'banax}} in German, {{IPAc-pl|ˈ|b|a|n|a|x}} in Slavic Languages, and {{IPAc-en|ˈ|b|ɛ|n|ɛ|k}} or {{IPAc-en|ˈ|b|ɒ|n|ɒ|k}}{{Cite web|url=https://www.merriam-webster.com/dictionary/Banach+space|title=Definition of BANACH SPACE|website=Merriam-webster.com|access-date=1 June 2022}} in English) is a Jewish surname{{Cite book |title=Jewish Family Names and Their Origins: An Etymological Dictionary |last1=Guggenheimer |first1=Heinrich Walter |last2=Guggenheimer |first2=Eva H. |year=1992 |isbn=0-88125-297-2 |page=57 |url=https://books.google.com/books?id=_dQP4nHgyVUC&dq=jewish+name+%22farache%22&pg=PA57}} of Ashkenazi origin{{Cite web|url=https://www.avotaynu.com/books/DJSGNames.htm|title=List of Jewish Surnames|website=Avotaynu.com/|access-date=10 September 2022}} believed to stem from the translation of the phrase "son of man", combining the Hebrew word ben ("son of") and Arameic nasha ("man"). Worth mentioning is how the Sephardic surname Banache presents a variant with the -ache alternative ultima, common in other Jewish surnames such as Farache,{{Cite book |title=Jewish Family Names and Their Origins: An Etymological Dictionary |last1=Guggenheimer |first1=Heinrich Walter |last2=Guggenheimer |first2=Eva H. |year=1992 |isbn=0-88125-297-2 |page=233 |url=https://books.google.com/books?id=_dQP4nHgyVUC&dq=jewish+name+%22farache%22&pg=PA233}} Ayache, Nakache, Harache{{Cite web|url=https://dbs.anumuseum.org.il/skn/en/c6/e245807/Family_Name/HARACHE|title=Origin of surname Harache|website=Anumuseum.org.il|access-date=10 September 2022}} or Marrache.

Banach means bastard in Old Polish and in some Old Polish dialects someone clumsy.{{Cite web|url=https://nazwiska.ijp.pan.pl/haslo/show/name/BANACH|title=Banach surname in PAN|website=nazwiska.ijp.pan.pl|access-date=17 October 2024}} As of 2023 about 67529 Polish people carried this surname in forms: Banach, Banachewicz, Banachowicz, Banachowski, Banasz, Banaszyński, Banaszyk, Banaszuk, Banaszewski, Banaszek, Banaszak, Banasiak, Banaśkiewicz, ... {{Cite web|url=https://nazwiska.ijp.pan.pl/|title=Polish surnames in PAN|website=nazwiska.ijp.pan.pl|access-date=17 October 2024}}. All those forms are connected with Banach, as in Polish -ch suffix often trangressed to -sz or -ś/-si. Additional -wicz is a patronymic suffix. Late (XVII century+) -ski/-cki/-dzki suffixes are connected with historical (middle ages) -ski reflecting Polish z (from) nobiliary particle (e.g. Jan z Tarnowa was equally known by the name Jan Tarnowski).

Notable people with this surname include:

• Stefan Banach (1892–1945), Polish mathematician
• Ed Banach (born 1960), American wrestler
• Lou Banach (born 1960), American wrestler
• Korneliusz Banach (born 25 January 1994), Polish volleyball player
• Łukasz Banach, birth name of Norman Leto (born 1980), Polish artist in the fields of painting, film, and new media
• Maurice Banach, German footballer
• Orest Banach, German-American soccer goalkeeper of Ukrainian descent
• William Banach (1903–1951), American politician, member of the Wisconsin State Assembly