The Hittite word kuu̯āu-
Word kuu̯āu-
Transliteration kuwau
Meaning cow
See also Lydian: imbous ‘cow’
Greek: βοῦς ‘cow, bull’
Proto-Indo-European: *gʷōus ‘cow, bull’
Armenian: kov ‘cow’
Tocharian B: keu ‘cow’
C. Luwian: *wa-a-u-i ‘cow’
Proto-Anatolian: *gwóʔu- ‘cow’
Avestan: gauu- ‘cow, bull’
Sanskrit: gáuḥ ‘cow’

Comments
GU4 -uš

Other words that might be of interest
i-ia-an-ta-an ‘sheep’, ekku ‘horse’, a-li-ya-na ‘deer’, la-aḫ-pa-aš ‘ivory, elephant’