c. 1500, "starry, star-spangled," from Latin stellatus "covered with stars," past participle of stellare "to set with stars," from stella "star" (*ster- (2) "star"). Meaning "star-shaped" is recorded from 1660s.
a starlike or stellate arrangement of petals
*stel-
stele
stell
Stella
stellar
stellate
stem
stem-winder
Sten
stench
stencil