Archaic
Part of speech: noun
Definition: A general term for the prehistoric period intermediate between the earliest period ("Paleo-Indian", "Paleo-American", "American-paleolithic", etc.) of human presence in the Western Hemisphere, and the most recent prehistoric period ("Woodland", etc.).
Part of speech: adjective
Definition: Of or characterized by antiquity; old-fashioned, quaint, antiquated, as an archaic word or phrase. No longer in ordinary use, though still used occasionally to give a sense of antiquity.
Example sentence: After spending so much time in America, I started travelling with 'In Defence of English Cooking' by George Orwell. It's archaic and old-fashioned in its Englishness and reminds me of home.
Old
Part of speech: adjective
Definition: Of an object, concept, relationship, etc., having existed for a relatively long period of time.Of a living being, having lived for relatively many years.Having existed or lived for the specified time.Former, previous.Obsolete; out-of-date.TiresomeSaid of subdued colors, particularly reds, pinks and oranges, as if they had faded over time.Of an object, concept, relationship, etc., having existed for a relatively long period of time.
Example sentence: A man's only as old as the woman he feels.