The Lycian word xuga
Word xuga
q u γ a
IPA quγa
Meaning grandfather
See also Carian: quq- ‘personal name’
Hittite: ḫu-uḫ-ḫa-aš ‘grandfather’

Other words that might be of interest
ẽne ‘mother’, eti ‘father’, kbatra- ‘daughter’, lada ‘wife’, nẽne ‘brother’, muwẽte ‘personal name, descendant’, tede ‘father’, tideimi ‘son, child’, tuhe ‘nephew, niece’, xahba ‘grandchild’