Wikipedia
Ahurani is the Avestan language name of a Zoroastrian (class of) divinity associated with "the waters" ( āpō). In scripture, the expression ahurani appears both in the singular and in the plural, and may - subject to context - either denote a specific divinity named Ahurani, or a class of divinities that are ahuranis.
The Avestan feminine suffix -ani denotes "companion, wife, mate", hence ahurani means "partner of ahura." The ahura of the name may or may not be a reference to Ahura Mazda or to the other Ahuras. Following recent scholarship (see Ahura for details), it is now generally supposed that there was once been a divinity whose proper name was *Ahura, and from whom the various ahuras of the Avesta receive this epithet.