antiaggressive

Etymology tree Proto-Indo-European *h₂ent- Proto-Indo-European *-s Proto-Indo-European *h₂énts Proto-Indo-European *-i Proto-Indo-European *h₂éntider. Ancient Greek ᾰ̓ντῐ́ (ăntĭ́) Ancient Greek ἀντι- (anti-)der. English anti- Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *gʰredʰ-der. Latin gradior Latin aggredior Latin aggressuslbor. English aggress Proto-Indo-European *-wósder. Latin -īvus Old French -ifbor. Middle English -yf English -ive English aggressive English antiaggressive From anti- + aggressive.

来源：wiktionary