Main Entry: niece

Pronunciation: \ˈnēs\

Function: noun

Etymology: Middle English nece granddaughter, niece, from Anglo-French nece, niece, from Late Latin neptia, from Latin neptis; akin to Latin nepot-, nepos grandson, nephew — more at nephew

Date: 14th century

1 : a daughter of one's brother, sister, brother-in-law, or sister-in-law
2 : an illegitimate daughter of an ecclesiastic