nephew[nef′yo̵̅o̅; chiefly Brit, nev′-]
- The definition of a nephew is a sibling's son or a sibling-in-law's male child.
An example of nephew is your sister's son.
- the son of one's brother or sister
- the son of one's brother-in-law or sister-in-law
- an illegitimate son, as of a medieval prelate: a euphemism
- a descendant
Origin of nephewMiddle English neveu ; from Old French ; from Classical Latin nepos ; from Indo-European base an unverified form nepot-, grandson, nephew from source Sanskrit napat, Old English nefa
Origin of nephewMiddle English neveu, nepheu, from Old French nevo, neveu, from Latin nepōs; see nepōt- in Indo-European roots.
From Middle English nevew, neveu (“nephew, grandson"), from Old French neveu (“nephew, grandson"), from Latin nepÅtem, accusative of nepÅs (“nephew, grandson"), from Proto-Indo-European *nepot- (“grandchild, sister's son"). Cognate with Old English nefa (“nephew, grandson"). More at neve.