ABRUPT, ABRUPTLY
ADJECTIVES
1513 — KNAPPISH rudely abrupt or forward, testy, snappish, sharp-tongued, spiteful → obs. exc. Eng. dial.
1601 — CURSORY abrupt, brief, hasty, hurried
1644 — EJACULATORY given to abrupt, impulsive expression → obs.
1831 — CURT abrupt in manner
ADVERBS
1530 — CUTTEDLY abruptly, concisely, curtly → obs.
1840 — SMACK abruptly, with a sudden blow, sharply → Amer. dial.
1847 — BANG abruptly, suddenly → Eng. dial.
1852 — SMACK-DAB abruptly, with a sudden blow, sharply → Amer. dial.
1861 — BAZZ abruptly, suddenly → Eng. dial.
1965 — SMACK-BANG abruptly, with a sudden blow, sharply → Amer. dial.
1965 — SMACK-DAB-DASH abruptly, with a sudden blow, sharply →Amer. dial.
1965 — SMACK-JAM abruptly, with a sudden blow, sharply → Amer. dial.
1966 — A-POP — POP abruptly, suddenly, at once → Amer. dial.
VERBS
1970 — FLASH to do something abruptly or in a strange way → US students’ sl. (Bk.)
Lexicophilia 