When a female horse foals, it gives birth. The mare is due to foal today. intr.v. foaled, foal·ing, foals To give birth to a foal. to give birth to a foal
[ 'fOl ] (noun.) before 12th century. Middle English fole, from Old English fola; akin to Latin pullus young of an animal, Greek pais child; more at FEW.