Swive transitive verb [ Middle English swiven , from Anglo-Saxon swīfan . See Swivel .] To copulate with (a woman). [ Obsolete] Chaucer. Found on http://www.encyclo.co.uk/webster/S/260
A Tudor-era slang term meaning to have sexual intercourse, and is related to the word "swivel", unsurprisingly. Found on https://www.encyclo.co.uk/local/21654