The word "youngling" refers to a young person or animal, typically one who is still a child or in the early stages of development.
Sentences with «youngling»
Granted I still consider myself a child and am nowhere near to having younglings of my own given a lack of desire to have any just yet and an abject lack of significant other. (egmr.net)
ISOFIX is also found inside, a must for families with younglings. (paultan.org)
O sisters too / How may we do / For to preserve this day / This poor youngling for whom we do sing?» (firstthings.com)