From Middle English foster, from Old English fostor ("food, sustenance"), from Proto-Germanic *fōstrą ("nourishment, food"). Cognate with Middle Dutch voester ("nursemaid"), Middle Low German voster ("food"), Old Norse fóstr ("nurturing, education, alimony, child support"), Danish foster ("fetus"), Swedish foster ("fetus").
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Challenge yourself
Level up your vocabulary by setting personal goals.