Fóstor-ling

According to the Old English Dictionary:

es;

fóstor-ling

m. A fosterling, foster-child; ălumnus, verna, vernŭla :-- Fósterling vernŭla, Ælfc. Gl. 8; Som. 56, 103; Wrt. Voc. 18, 53. Inberdling vel fósterling verna vel vernācŭlus, 86; Som. 74, 34; Wrt. Voc. 50, 17. [Laym. fosterling.] fostor-ling