rotundate
/rə(ʊ)ˈtʌndeɪt/Botany and Entomology
adjective
Having a somewhat round shape; rounded off at the corners or edges.
Origin
Late 18th century; earliest use found in James Lee (1715–1795), nurseryman. From classical Latin rotundātus, past participle of rotundāre to give a circular or spherical shape to, make round from rotundus round.