Fóstring

According to the Old English Dictionary:

es;

fóstring

m. I. a fosterchild of the place where one is brought up, a native of a place :-- Ðǽre burge fóstring, Lk. p. 2, 1. II. a fosterchild of the person by whom one is educated, a disciple :-- Discipul l lárcneht l fóstring ðára postolra discipulus apostolorum, Lk. p. 2, 2. fostring