STAID
ADJECTIVES
1887 — ANCIENT of children: staid, demure, precocious → Sc. & Eng. dial.
1896 — OLD wise, serious, thoughtful; of a child: precocious, staid, demure → Eng. dial.
1959 — BUTTON-DOWN having or characteristic of a conventional or conservative attitude or appearance; staid, formal, repressed → US
1960 — BUTTONED-DOWN having or characteristic of a conventional or conservative attitude or appearance; staid, formal, repressed → US
NOUNS, PERSON
1900 — OLD FASH used of an staid and knowing child → Eng. dial. (Bk.)
1956 — L-7 a staid person who is uninterested in or unsympathetic to the fashionable interests of teenagers → US sl.
1966 — DAG an unadventurous, staid, or unfashionable person; a socially inept or awkward person, esp. among schoolchildren → Aust. sl., depreciative usage
Lexicophilia 