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joder (Verb) (obscene) "to fuck"

14th cent. Old Spanish foder. Study of the word is hampered by the fact that, due to its vulgarity, most authorities passed over joder without entry until the late 20th cent. It is even omitted from Corominas' Breve diccionario (1987). From Latin futuere 'id.' Of unknown origin. Possibly from Proto-Italic *fūt- "to hit" or from a noun *futu- "ability to ejaculate." See de Vaan (2014) for discussion.

Also shortened variant jo via taboo deformation, however see also jo.

Romance: Western Vulgar Latin: Asturian foder, Portuguese foder, Galician foder, Catalan fotre, Italian fottere ; Eastern Vulgar Latin: Aromanian fut, Romanian fute ; Sardinian: fútere