Godspeed
来自Big Physics
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wiktionary
From Middle English phrase God spede(“may God cause you to succeed”), from God(“God”) + spede, singular subjunctive of spedan(“to prosper”), from Old English spēdan, from spēd(“success”) (see English speed).
etymonline
godspeed (interj.)
also God speed, by late 14c., "(I wish that) God (may) grant you success," from God + speed (v.) in its old sense of "prosper, grow rich, succeed." Specifically as a salutation by mid-15c. Also in Middle English as an adverb, "quickly, speedily" (early 14c.); the then-identically spelled God and good seem to be mixed up in this word. From late 13c. as a surname. He may bidde god me spede is found in a text from c. 1300.
