crossing my fingers for this guy.
however, nawaya or what ever examples around it are not part of the Hebrew language.
Don't know about the situation for this particular example, but keep in mind this type of analysis will necessarily involve extremely archaic dialects of all the involved languages
You're incorrect. The letter ו (vav) is pronounced /v/ in modern Hebrew but /w/ in Biblical Hebrew and other ancient Semitic languages, which is why the letter is referred to as Waw and transliterated as 'W'.
https://www.biblexika.com/bible-lexicon/navah-h5115
https://hebrew-academy.org.il/%D7%93%D7%A3-%D7%9E%D7%99%D7%9...
https://biblehub.com/hebrew/5116.htm