My, a.

adjective

(35), a. [O. Eng. my, mi, min, mine, A-S. min. See MINE.] Belonging to me;—used always attributively; as, my book;—mine is substituted in the predicate; as, the book is mine. ☞ Formerly mine was used before a vowel, and my before a consonant; my is now used before both.