Lewis & Short

pūpillus, i, m. dim. [pupulus], an orphan boy, an orphan; also, a ward (cf.: tutor, tutela), Cic. Verr. 2, 1, 50, § 130; id. de Or. 3, 41, 165; Hor. Ep. 2, 1, 123; 1, 1, 22; Suet. Claud. 23; id. Galb. 9; Inscr. Tab. Heracl. lin. 4 sq.; Juv. 6, 628; Dig. 50, 16, 239; Vulg. Exod. 22, 22; id. Jacob. 1, 27.