FIEND
devil, fiend, demon, daemon, daimon
(noun) an evil supernatural being
fanatic, fiend
(noun) a person motivated by irrational enthusiasm (as for a cause); āA fanatic is one who canāt change his mind and wonāt change the subjectā--Winston Churchill
monster, fiend, devil, demon, ogre
(noun) a cruel wicked and inhuman person
Source: WordNet® 3.1
Etymology
Noun
fiend (plural fiends)
A devil or demon; a malignant or diabolical being; an evil spirit.
Synonym: monster
A very evil person.
Synonym: monster
(obsolete) An enemy; a foe.
(religious, archaic) The enemy of mankind, specifically, the Devil; Satan.
(informal) An addict or fanatic.
Verb
fiend (third-person singular simple present fiends, present participle fiending, simple past and past participle fiended)
(slang, intransitive) To yearn; to be desperate (for something).
Anagrams
• endif, finde, fined, indef, indef.
Source: Wiktionary
Fiend, n. Etym: [OE. fend, find, fiend, feond, fiend, foe, AS. feĆ³nd;
akin to OS. fiond, D. vijand enemy, OHG. fiant, G. feind, Icel.
fjand, Sw. & Dan. fiende, Goth. fijands; orig. p.pr. of a verb
meaning to hate, AS. feĆ³n, feĆ³gan, OHG. fi, Goth. fijan, Skr. piy to
scorn; prob. akin to E. feud a quarrel. *81. Cf. Foe, Friend.]
Definition: An implacable or malicious foe; one who is diabolically wicked
or cruel; an infernal being; -- applied specifically to the devil or
a demon.
Into this wild abyss the wary fiend Stood on the brink of Hell and
looked a while. Milton.
O woman! woman! when to ill thy mind Is bent, all hell contains no
fouler fiend. Pope.
Source: Webster’s Unabridged Dictionary 1913 Edition