Harmless
来自Big Physics
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wiktionary
From Middle English harmles, from Old English *hearmlēas, from Proto-Germanic *harmalausaz(“without harm; harmless”), equivalent to harm + -less.
Cognate with German harmlos(“harmless”), Danish harmløs(“harlmess”), Swedish harmlös(“harmless”).
etymonline
harmless (adj.)
c. 1300, "uninjured," from harm (n.) + -less. Meaning "without power or disposition to harm" is from 1530s. Related: Harmlessly; harmlessness.
