Meaning

noun French soldier and writer whose descriptions of sexual perversion gave rise to the term `sadism' (1740-1814)

originFrom Middle English saden (“to weary, become weary or satisfied”), from Old English sadian (“to satisfy, satiate, fill, be sated, become wearied”), from Proto-West Germanic *sadōn (“to satiate, become satisfied”), from Proto-Germanic *sadaz (“sated”), from Proto-Indo-European *seh₂- (“to satiate, be satisfied”). Doublet of sate, a later variant; also cognate with English sad.

Etymology from Wiktionary, CC BY-SA 3.0