The Lydian word kambein
Word kambein
n i e b m a k
Meaning grandchild
See also Hittite: ḫa-aš-ša-aš ‘descendant’
Hittite: kap-pi-iš ‘small, little’
Lycian: xahba ‘grandchild’

Other words that might be of interest
taada- ‘father’, eśa- ‘child, offspring’, kãna- ‘wife’, nẽne/i ‘brother’, istaminlis ‘family members’, afara ‘descendant’, ẽnaś ‘mother’, śuũoś ‘son’, śfẽnis ‘relatives’