This is too obviously an apocryphal folk etymology. If it's Semitic at all it would seem to be a variant of
Reuel or
Raguel "friend of God". The Egyptian Arabic for "
Angel" should be
Malak, similar to Hebrew "Mal'akh". Angels in the native Egyptian Coptic tradition are derived from earlier Hebrew, not Egyptian traditions, the idea being one of ancient Euphrates cultures adopted by both the Persians to the north and Semitic peoples to the south.