- petal (n.)
[petal 词源字典]
- 1726 (earlier petala, 1704), from Modern Latin petalum "petal" (17c.), from Greek petalon "a leaf; leaf of metal, thin plate," noun use of neuter of adj. petalos "outspread, broad, flat," from PIE root *pete- "to spread out" (see pace (n.)). Related: Petaline.[petal etymology, petal origin, 英语词源]