1590s, probably from French souiller "to soil," also figurative, from Old French soillier "make dirty" (see soil (v.)). Related: Sullied (1570s); sullying.
1620s, "state or condition of being miserable and dirty," from Latin squalor "roughness, dirtiness, filthiness," from squalere "be filthy" (see squalid).
also 'taint, representing a colloquial contraction of it ain't, by 1830s, American English. The joke about the perineum involving this word dates to at least 1977.
1849, "actress who plays comedy," from French comédienne, fem. of comédien (see comedian). From 1945 as "professional female joke-teller."
early 13c., "to defile or pollute with sin," from Old French soillier "to splatter with mud, to foul or make dirty," originally "to wallow" (12c., Modern French souillier), from souil "tub, wild boar's wallow, pigsty," which is from either Latin solium "tub for bathing; seat" (from PIE *sodio- "seat," from root *sed- "to sit") or Latin suculus "little pig," from sus "pig." Literal meaning "to make dirty, begrime" is attested from c. 1300 in English. Related: Soiled; soiling.