Meaning

noun Eurasian plant with apple-scented foliage and white-rayed flowers and feathery leaves used medicinally; in some classification systems placed in genus Anthemis

originFrom Middle English camamille, first attested 1265, from Old French camomille, from Late Latin camomilla, from Latin chamaemelon, from Ancient Greek χαμαίμηλον (khamaímēlon, literally “earth-apple”), from χαμαί (khamaí, “on the ground”) + μῆλον (mêlon, “apple”). So called because of the apple-like scent of the plant.

Etymology from Wiktionary, CC BY-SA 3.0