Wateya «w» li A Kurdish-English Dictionaryde:

w [1]

inserted for euphony in certain cases between û and a following vowel, but not before ê or î, see y1

w [2]

(thus after vowel) conjunction and see u, we.
A Kurdish-English Dictionary
Berhema:
Tofîq Wehbî û Edmonds
Ziman:
Kurdîy Nawendî Bo Îngilîzî
Sala weşanê:
1966