Ishmael

nouns

(Old Testament) the son of Abraham who was cast out after the birth of Isaac; considered the forebear of 12 Arabian tribes
domain category
the collection of books comprising the sacred scripture of the Hebrews and recording their history as the chosen people; the first half of the Christian Bible
is an instance of (narrower)
any of the early biblical characters regarded as fathers of the human race
a person who is rejected (from society or home)