1 fóstri
a, m. a foster-father, Íb. 14, Eg. 117, Fs. 13, 19, Lv. 50, Bs. i. 154. 425, Fms. v. 126, Grág. i. 226; freq. in Icel. in addressing, fóstri minn, fóstra min!
2 fóstri
2. a foster-son, Nj. 149.
3 fóstri
3. a pet, of a favourite horse, Sturl. i. 40, Hrafn. 8.
4 fóstri
4. a foster-brother, Fms. vii. 316, xi. 155, (rare.)
5 fóstri
5. in pl., collect. the foster-father and his son (or sons), Fms. xi. 59.