great-grandnephew
English
[edit]Etymology
[edit]From great- + grandnephew.
Noun
[edit]great-grandnephew (plural great-grandnephews)
- A great-grandson of one's sibling, a grandson of one's nephew or niece. (Brother's great-grandson: fraternal great-grandnephew. Sister's great-grandson: sororal great-grandnephew.)