churl n.

early 14c., "country-man, peasant farmer, rustic," from Old French bovier "herdsman," from Latin bovis, genitive of bos "cow, ox." This was reinforced by or merged with native Old English gebur "dweller, farmer, peasant" (unrelated but similar in sound and sense), and 16c. by its Dutch cognate boer, from Middle Dutch gheboer "fellow dweller," from Proto-Germanic *buram "dweller," especially "farmer" (compare German Bauer), from PIE root *bheue- "to be, exist, grow."

"A word of involved history in and out of English, though the ultimate etymology is clear enough" [OED]. In English it often was applied to agricultural laborers in or from other lands, as opposed to the native yeoman; the negative transferred sense of "one who is rude in manners," attested by 1560s (in boorish), is from the city-dweller's notion of clownish rustics. Related: Boorishness.

c. 1300 (late 12c. as a surname), "base or low-born rustic," from Anglo-French and Old French vilain "peasant, farmer, commoner, churl, yokel" (12c.), from Medieval Latin villanus "farmhand," from Latin villa "country house, farm" (from PIE root *weik- (1) "clan"). Meaning "character in a novel, play, etc. whose evil motives or actions help drive the plot" is from 1822.

The most important phases of the sense development of this word may be summed up as follows: 'inhabitant of a farm; peasant; churl, boor; clown; miser; knave, scoundrel.' Today both Fr. vilain and Eng. villain are used only in a pejorative sense. [Klein]