 Nearly all words relating to sexual intercourse and sexual organs as well as "impolite" words for bodily functions were ignored in favor of words borrowed from Latin or Ancient Greek.The Old English synonyms are now mostly either extinct or considered crude or vulgar, such as arse/ass.Some words were forgotten while other near-synonyms in Old English replaced them ('limb' remains in common use, but "lið" remains only dialectally as lith).