great-nephew

[greyt-nef-yoo, -nev-yoo] /ˈgreɪtˌnɛf yu, -ˌnɛv yu/
noun
1.
a son of one's nephew or niece; grandnephew.
Origin
1575-85
Examples from the web for great-nephew
  • Her great-nephew insists she worked in the cellar and that the farm had several rooms of wrought-iron objects she had made there.
British Dictionary definitions for great-nephew

great-nephew

noun
1.
a son of one's nephew or niece; grandson of one's brother or sister