Old French foine, from Latin fuscina âtridentâ.
archaic to thrust with a sword; to stab at
#:*Late C14: And after Ã¾at, wiÃ¾ sharpe speres stronge / Ãey foynen ech at ooÃ¾er wonder longe. â Geoffrey Chaucer, The Knight's Tale
#:*1976: These Fastulfrs and
Falsts could drink as well as they could foin or fight, and this has also been the case with me. â Robert Nye, Falstaff
From an earlier *fein from Latin fenum