Meaning

noun a cruel wicked and inhuman person

noun an evil supernatural being

noun a person motivated by irrational enthusiasm (as for a cause); --Winston Churchill

originFrom Middle English fend, feend (“enemy; demon”), from Old English fēond (“enemy”), Proto-West Germanic *fijand, from Proto-Germanic *fijandz. Cognates Cognate with Scots fient (“fiend”), Saterland Frisian Fäind (“enemy, fiend, foe”), Cimbrian faint (“enemy, fiend”), Dutch vijand (“enemy”), German Feind (“enemy, fiend, foe”), Vilamovian faeind, fajnd (“enemy”), Yiddish פֿײַנד (faynd), פֿײַנט…

Etymology from Wiktionary, CC BY-SA 3.0