fuck (v.)
until recently a difficult word to trace, in part because it was taboo to the editors of the original OED when the "F" volume was compiled, 1893-97. Written form only attested from early 16c. OED 2nd edition cites 1503, in the form fukkit; earliest appearance of current spelling is 1535 -- "Bischops ... may fuck thair fill and be vnmaryit" [Sir David Lyndesay, "Ane Satyre of the Thrie Estaits"], but presumably it is a much more ancient word than that, simply one that wasn't written in the kind of texts that have survived from O.E. and M.E. Buck cites proper name John le Fucker from 1278. The word apparently is hinted at in a scurrilous 15c. poem, titled "Flen flyys," written in bastard Latin and M.E. The relevant line reads:
Non sunt in celi
quia fuccant uuiuys of heli
"They [the monks] are not in heaven because they fuck the wives of [the town of] Ely." Fuccant is pseudo-Latin, and in the original it is written in cipher. The earliest examples of the word otherwise are from Scottish, which suggests a Scandinavian origin, perhaps from a word akin to Norwegian dialectal fukka "copulate," or Swedish dialectal focka "copulate, strike, push," and fock "penis." Another theory traces it to M.E. fyke, fike "move restlessly, fidget," which also meant "dally, flirt," and probably is from a general North Sea Germanic word; cf. M.Du. fokken, Ger. ficken "fuck," earlier "make quick movements to and fro, flick," still earlier "itch, scratch;" the vulgar sense attested from 16c. This would parallel in sense the usual M.E. slang term for "have sexual intercourse," swive, from O.E. swifan "to move lightly over, sweep" (see swivel). But OED remarks these "cannot be shown to be related" to the English word. Chronology and phonology rule out Shipley's attempt to derive it from M.E. firk "to press hard, beat."
Germanic words of similar form (f + vowel + consonant) and meaning 'copulate' are numerous. One of them is G. ficken. They often have additional senses, especially 'cheat,' but their basic meaning is 'move back and forth.' ... Most probably, fuck is a borrowing from Low German and has no cognates outside Germanic. [Liberman]
