Origin: ModL veratrina < L veratrum, hellebore, prob. orig. “plant which reveals truth” < verus, true (see very): the pulverized root causes sneezing, regarded in primitive belief as confirmation of truth
See veratrine in American Heritage Dictionary 4
Origin: New Latin Vērātrum, hellebore genus (from Latin vērātrum, hellebore)
Origin: + -ine2.