verve (n.) Look up verve at Dictionary.com
1690s, "special talent in writing, enthusiasm in what pertains to art and literature," from French verve "enthusiasm" (especially pertaining to the arts), in Old French "caprice, odd humor, proverb, saying; messenger's report" (12c.), probably from Gallo-Roman *verva, from Latin verba "(whimsical) words," plural of verbum "word" (see verb). Meaning "mental vigor" is first recorded 1803.
vervet (n.) Look up vervet at Dictionary.com
South African monkey, 1884, from French (Cuvier), of unknown origin, perhaps short for vert grivet, literally "a green grivet," indicating it was greener than the kind of monkey known as a grivet (itself a name of unknown origin). "Vervets are among the monkeys carried about by organ-grinders" [Century Dictionary].