I'm disappointed that nobody corrected me about the tea
his mother gave Peter Rabgit. It was chamomile.
chamomile
n.
5ME camomille < OFr camemile < L chamomilla < Gr chamaimclon, earth apple < chamai, on the ground (see CHAMELEON) + mclon, apple (see MELON)6 any plant of two genera (Anthemis and Matricaria) of the composite family, with strong-smelling foliage; esp., a plant (A. nobilis) whose dried, daisylike flower heads are used as a medicine and in making tea