It looks like it might be some obscure ancient name, but it also just kind of looks like napalm. Or like the first syllable is "nap".
Maybe Nephan would be better if you wanted a name similar to
Nathan but with an F sound, and you could say it was based on
Nephele or something. (I was going to say it could be a variant of Nephaniah, but that's not in the database and I was probably thinking of
Zephaniah).