JP's struggles revealed his parents' heroic virtue and fostered virtue in others.
It has always been the case that churches, synagogues and mosques have fostered compassionate care for the unfortunate.
Assad has fostered the notion that his secular regime offers religious minorities a protection that rebels will not.
Old English *fostrian "to supply with food, nourish, support," from fostor "food, nourishment, bringing up," from Proto-Germanic *fostrom, from root *foth-/*fod- (see food).
Meaning "to bring up a child with parental care" is from c.1200; that of "to encourage or help grow" is early 13c. of things; 1560s of feelings, ideas, etc. Old English also had the adjective meaning "in the same family but not related," in fostorfæder, etc. Related: Fostered; fostering.