[mod. Latin archaisum from Greek arkhaimos, from arkhaizein copy of the ancients in language, etc., from arkhaios ancient]
1 The retention or imitation of what is old or obsolete, esp. in language or art. M17.
2 An archaic word or expression; an archaic feature. M17.
Zounds, thou caddish blackguard! Come hither forthwith! I advance unto thee this galimaufry of archaisms; fettle thine ivory tablets, deliciate and be astonied, for hark! I am neither a bouncable nor a coiner, but a ludibrious grinder! Kench unto these archaisms; let us brabble no more, but depart anon from whenceforth we came.