英语词源字典 - 在线词源网站

A-line (adj.)[A-line 词源字典]: descriptive of a dress or skirt flared in shape of a letter "A," 1955, in reference to the designs of Christian Dior (1905-1957).[A-line etymology, A-line origin, 英语词源]
flare (v.): 1540s, "spread out" (hair), of unknown origin, perhaps from Scandinavian or from Dutch vlederen. Meaning "shine out with a sudden light" is from 1630s. The notion of "spreading out in display" is behind the notion of "spreading gradually outward" (1640s). Related: Flared; flaring.
flare (n.): "a giving off of a bright, unsteady light," 1814, from flare (v.). This led to the sense of "signal fire" (1883). The astronomy sense is from 1937. Meaning "a gradual widening or spreading" is from 1910; hence flares "flared trousers" (1964).
wingnut (n.): "nut with flared sides for turning with the thumb and forefinger;" so called for its shape (see wing (n.) + nut (n.)). Meaning "weird person" recorded by 1989, probably not from the literal sense but from the secondary sense of nut, influenced perhaps by slang senses of wing in wing-ding "wild party," originally "fit, spasm" (1937). An earlier, British, sense of wingnut was "person with large, protruding ears" (1986).
metaphysis: "The (usually slightly flared or conical) part of a long bone located between the diaphysis and epiphysis", Early 20th cent.; earliest use found in William Dorland (1864–1956). From meta- + -physis.