The story
From great- + great- + grandparent.
Etymology from Wiktionary, CC BY-SA 4.0.
great-great-grandparent
Today it means: A parent of a great-grandparent, a grandparent of a grandparent and a great-grandparent of a parent. Full definition →
Today it means: A parent of a great-grandparent, a grandparent of a grandparent and a great-grandparent of a parent. Full definition →
From great- + great- + grandparent.
Etymology from Wiktionary, CC BY-SA 4.0.