ADULT, ADULTHOOD
ADJECTIVES
1579 — MANLY adult; grown up; mature → obs.
1882 — MUCKLE adult; grown-up, → Sc.
1883 — MAN-GROWN adult; mature, grown-up → Sc.
1895 — UP-GROWN adult → Eng. dial.
1896 — MAN-LENGTH adult; having reached the age of manhood, mature → Sc.
1898 — MAN-BIG adult; full-grown → Eng. dial. (Bk.)
1905 — UP-WAXEN adult → Eng. dial. (Bk.)
NOUNS
1275 — DOUTH adulthood, maturity → obs.
1596 — FATHER-AGE adulthood of man; a mature age → obs.
NOUNS, PERSON
1810 — GROWN-UP an adult → colloq.
1825 — MAN BODY an adult man, a man in general as opposed to a woman → Sc.
1834 — MASTER an adult; a young man when grown up → Eng. dial.
1869 — HARD PEOPLE adults → Eng. dial. (Bk.)
1923 — GROWN an adult → colloq.
1942 — OLD ONE an adult → Amer. dial.
1970 — GROWNIES adults; grown-ups, esp. one’s own; hence, also one’s friends’ parents (often spelt, where the pun is intentional, ‘groanies’) → teenage sl.
1970 — HOT SPOOK a ‘cool’ adult; a member of the over-30 generation who still relates → US students’ sl. (Bk.)
Lexicophilia 