"Form of Raven"
The name Raiven is commonly a female name from the "English" origin.
Raiven is a respelling of the English name Raven, which is taken from the word for the bird, from Old English hraefn. The ai spelling stands for the same vowel sound as the a in Raven, a substitution that also appears in pairs such as Jaden and Jaiden. The spelling is modern and phonetic; it does not add a separate meaning.
Raven means "Black bird.".
The pronunciation of Raiven is RAY-ven.