Protective
来自Big Physics
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."
