英语词汇retrogression的起源、历史背景-英语词源词典

词汇	retrogression
词源	retrogression n. "the act of going backward," in reference to the apparent motion of planets in the sky, 1640s, noun of action, formed on model of progression, from Latin retrogressus, past participle of retrogradi "move backward" (see retrograde). Related: Retrogressional. Entries linking to retrogression retrograde adj. late 14c., of planets, "appearing to move in the sky contrary to the usual direction," from Latin retrogradus "going back, moving backward," from retrogradi "move backward," from retro "backward, reverse" (see retro-) + gradi "to go, step" (from PIE root *ghredh- "to walk, go"). General sense of "tending to revert" is recorded from 1530s; that of "directed backward, in a direction contrary to the original motion" is from 1620s. . retrogress v. "move backward; deteriorate," 1816, probably a back-formation from retrogression. Related: Retrogressed; retrogressing. updated on July 30, 2021
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retrogression n.