nephew/ˈnɛf.ju/EtymologyEnglish surname, from the noun nephew.nameA surname.nounA son of one's sibling, brother-in-law, or sister-in-law; either a son of one's brother (fraternal nephew) or a son of one's sister (sororal nephew).A son of one's cousin or cousin-in-lawA son of one's child.“Hir father many a time and oft would say my daughter deere, Of Nephewes thou my debtour art, their Graundsires heart to chéere.”