Offspring
来自Big Physics
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Old English ofspring (see off, spring).
wiktionary
From Middle English ofspring, from Old English ofspring(“offspring, descendants, posterity”), equivalent to off- + spring. Compare Icelandic afspringur(“offspring”). More at off, spring.
etymonline
offspring (n.)
Old English ofspring "children or young collectively, descendants," literally "those who spring off (someone)," from of "away, away from" (see off (prep.)) + springan "to spring" (see spring (v.)). Similar formation in Old Norse afspringr. The figurative sense "that which is produced by something" is recorded from c. 1600. In Middle English often oxspring, ospring. Spelled with one -f- (except by Orm) before c. 1500.
