Brute
late Middle English (as an adjective): from Old French brut(e ), from Latin brutus ‘dull, stupid’.
wiktionary
From Middle French brut, from Old French brut, from Latin brūtus(“dull, stupid, insensible”), an Oscan loanword, from Proto-Indo-European *gʷréh₂us(“heavy”). Cognate with Ancient Greek βαρύς(barús), Persian گران (gerân) and Sanskrit गुरु(gurú) (English guru).
brute (third-person singular simple present brutes, present participle bruting, simple past and past participle bruted)
etymonline
brute (adj.)
early 15c., "of or belonging to animals, non-human," from Old French brut "coarse, brutal, raw, crude," from Latin brutus "heavy, dull, stupid, insensible, unreasonable" (source also of Spanish and Italian bruto), said to be an Oscan word, from PIE *gwruto-, suffixed form of root *gwere- (1) "heavy." Before reaching English the meaning expanded to "of the lower animals." Used in English of human beings from 1530s, "wanting in reason, blunt or dull of sentiment, unintelligent." The sense in brute force (1736) is "irrational, purely material."
Brute ... remains nearest to the distinguishing difference between man and beast, irrationality .... Brutish is especially uncultured, stupid, groveling .... Brutal implies cruelty or lack of feeling: as brutal language or conduct. [Century Dictionary]
brute (n.)
1610s, "a beast" (as distinguished from a man), especially one of the higher quadrupeds, from brute (adj.). From 1660s as "a brutal person, a savage in disposition or manners."
