archaismsobsolete
Archaismsobsolete is a term used in linguistics to categorize archaisms that have become completely obsolete in standard varieties of a language. An archaism is a linguistic form—whether a word, pronoun, verb ending, or spelling—belonging to an earlier stage of a language that has largely disappeared from everyday usage. When such forms no longer occur even in restricted registers, nearly disappearing from all but historical texts or carefully styled speech, they may be described as archaismsobsolete. The designation helps distinguish forms that are merely old-fashioned from those that have ceased to function in contemporary communication.
In English, archaismsobsolete include pronouns thou, thee, thy, thine, and related verb forms such as dost, hast,
Studying archaismsobsolete illuminates language change, the social forces behind obsolescence, and the way reference to history