An Etymological Dictionary of Astronomy and Astrophysics

Any plant of the genus Paeonia, having showy, pink, red, or white, globular flowers. Originally cultivated in the temperate regions of Asia, China, Europe, and the northwest parts of North America.

Etymology (EN): M.E., from M. Fr. peonie, pioiné, from L.L. peonia, from L. pæonia, from Gk. paionia,
perhaps from Paion, physician of the gods.
The plant was recognized to possess many remedial properties, and was thus given an association with the gods.

Etymology (PE): Payoniyâ, loan from Gk, as above.