lūtĕŏlus, a, um, adj. dim. [1. luteus],
yellowish : mollia luteolā pingit vaccinia calthā, Verg. E. 2, 50: violae, Col. 9, 4, 4: olivae, id. 12, 47, 9.
lūteolus adj. dim. 1 luteus, yellowish : caltha, V. ...
An Elementary Latin Dictionary