hostile (adj.) Look up hostile at Dictionary.com
late 15c., from Middle French hostile "of or belonging to an enemy" (15c.) or directly from Latin hostilis "of an enemy, belonging to or characteristic of the enemy; inimical," from hostis "enemy" (see guest (n.)). The noun meaning "hostile person" is recorded from 1838, American English, a word from the Indian wars. Related: Hostilely.