obnoxious

Origin

PIE word *h₁epi Learned borrowing from Latin obnoxiōsus (“subject to someone, under someone’s authority”) + English -ous (suffix denoting the presence of a quality in any degree, typically an abundance). Obnoxiōsus is derived from obnoxius (“guilty, punishable; subject to someone, under someone’s authority”) + -ōsus (suffix meaning ‘full of; overly; prone to’, forming adjectives from nouns).