lascivious

the word 'lascivious' entered english in the late 15th century from the latin adjective lascīvus, which carried meanings ranging from playful and frisky to wanton and lustful. latin lascīvus is likely derived from the verb lacere, meaning "to entice" or "to allure," though its ultimate pre-latin origin is uncertain. the suffix -ious is the english adaptation of the latin -iōsus, used to form adjectives meaning "abounding in" or "characterized by." thus, the literal morphemic construction yields "characterized by wantonness or lustfulness," a meaning that has narrowed and intensified in modern english to specifically denote overt and excessive sexual desire or expression.

Structure: lasciv (wanton, lustful) + ious (adjective-forming suffix) lasciv (from latin lascīvus, meaning playful, wanton, lustful) + ious (from latin -iōsus, an adjective-forming suffix meaning "full of" or "characterized by").