"talk familiarly together, chat," 1610s, from confabulatus, past participle of Latin confabulari "to converse together," from assimilated form of com "with, together" (see con-) + fabulari "to talk, chat," from fabula "a tale" (from PIE root *bha- (2) "to speak, tell, say"). Psychiatric sense is from 1924. Earlier verb was confable (c. 1500), from Old French confabuler. Related: Confabulated; confabulating; confabulator; confabulatory.
1650s, "meager, barely sufficient for use;" 1701, "too small, limited in scope, lacking amplitude or extent," from scant (adj.) + -y (2). Related: Scantiness "insufficiency" (1560s). Scanties (n.) "underwear" (especially for women) is attested from 1928.
To speken of the horrible disordinat scantnesse of clothyng as ben thise kutted sloppes or hanselyns, that thurgh hire shortnesse ne couere nat the shameful membres of man to wikked entente. [Chaucer, "Parson's Tale"]