English
great-grandniece
From great- + grandniece.
Formed from great- + grandniece
Proto-Indo-European *gʰrewd- ‘to rub, grind, remove’
Proto-Germanic *grautaz ‘coarse, crude’
Proto-West Germanic *graut
Old English grēat ‘big’
Middle English grete ‘great’
English great-
Today it means
noun A great-granddaughter of one's sibling, a granddaughter of one's nephew or niece. (Brother's great-granddaughter: fraternal great-grandniece. Sister's great-granddaughter: sororal great-grandniece)
Language periods are conventional ranges, not dates for this word.
Etymograph / great-grandniece