mid-13c., from Old French camemile, from Late Latin camomilla, from Latin chamomilla, from Greek chamaimelon, literally "earth apple," from chamai "on the ground" (also "dwarf;" see chameleon) + melon "apple" (see malic). So called for its scent. Old English had it as camemalon.[camomile etymology, camomile origin, 英语词源]