great-grandparent
US /ˌɡreɪtˈɡræn.per.ənt/
UK /ˌɡreɪtˈɡræn.per.ənt/

1.
kakek buyut, nenek buyut
a parent of one's grandparent; a grandparent's parent
:
•
My great-grandparent lived to be 100 years old.
Kakek buyut saya hidup sampai usia 100 tahun.
•
She inherited a valuable heirloom from her great-grandparent.
Dia mewarisi pusaka berharga dari kakek buyutnya.