Protective
来自Big Physics
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wiktionary
protect + -ive
etymonline
protective (adj.)
"affording protection, sheltering, defensive," 1660s, from protect + -ive. As a noun from 1875. Related: Protectively; protectiveness. Protective custody is from 1936, translating German Schutzhaft, used cynically by the Nazis. The notion is "adopted or intended to afford protection."
