The etymology of the word is not entirely clear. Freq[uently] used as a pet name or as a term of endearment. The puss in "sourpuss" is not being used in the same sense though as it comes from the Irish word pus meaning lip or mouth and often used to also mean "face".
Pussy is a strange word. The Routledge Portuguese Bilingual Dictionary.
A "khaki pussy" is an expression for a military man who offers his comrades sexual services "with his ass". The word pussy is also used in a derogatory sense to mean cowardly, weak, or easily fatigued. Webarchive template wayback links CS1 French-language sources fr Wikipedia indefinitely semi-protected pages Wikipedia indefinitely move-protected pages All articles with unsourced statements Articles with unsourced statements from May Articles with unsourced statements from October
According to Michael Sims , Old English had the word pusa or posa for "bag" and by the s, English saw the use of pusse to signify the vagina. The Oxford-Duden German Dictionary. The Routledge Portuguese Bilingual Dictionary.