Supportive
来自Big Physics
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Middle English (originally in the sense ‘tolerate’): from Old French supporter, from Latin supportare, from sub- ‘from below’ + portare ‘carry’.
wiktionary
From support + -ive.
etymonline
supportive (adj.)
1590s, from support (v.) + -ive. Called "rare" in OED 1st edition and Century Dictionary. Related: Supportively; supportiveness.