pupillo-, pupill- +
(Latin: [diminutive of pupa, a young girl, doll or puppets] the pupil of the eye; including the larva of insects)
The term pupil came into existence because when one looked closely into another person's eyes, he/she could see the reflections of little images ["dolls" or "puppets"] of her/himself.
Related references to "eye" or "eye part" word families: blepharo-; core-; corneo-; eye, eyes; irido-; lenti-, lens-; lenticulo-; ocelli-; oculo-; op-, -optic; ophthalmo-; phaco-; retino-; uveo-.