foal (n.)

Old English fola "foal, colt," from Proto-Germanic *fulon (source also of Old Saxon folo, Middle Dutch volen, Dutch veulen, Old Norse foli, Old Frisian fola, Old High German folo, German Fohlen, Gothic fula), from PIE *pulo- "young of an animal," suffixed form of root *pau- (1) "few, little."

foal (v.)

"give birth (to a foal)," late 14c., from foal (n.). Related: Foaled; foaling.