Atropine

google

ref

mid 19th century: modern Latin Atropa belladonna ‘deadly nightshade’, from Atropos + -ine4.

wiktionary

ref

From Latin Atropa(“genus of deadly nightshade”) +‎ -ine.

etymonline

ref

atropine (n.)

also atropin, "poisonous crystalline alkaloid obtained from nightshade," 1831, from Latin atropa "deadly nightshade" (from which the alkaloid poison is extracted), from Greek atropos "inflexible, unchangeable," also the name of one of the Fates (see Atropos) + chemical suffix -ine (2). By 1821 in French and German.