ahura

Weber thinks that this implies close acquaintance with Persian worship, a sort of tit-for-tat; for the Hindu would in that case call the holy spirit, _ahura_, of the Persian a devil, just as the Persian makes an evil spirit, _daeva_, out of the Hindu god, _deva_.

The Religions of India Handbooks on the History of Religions, Volume 1, Edited by Morris Jastrow Edward Washburn Hopkins 1894

This asura became in Zend ahura, and if it assumed the general meaning of Lord, this is as much a secondary meaning as the meaning of demon or evil spirit, which asura assumed in the later Sanskrit of the Brâhma_n_as.

Chips From A German Workshop - Volume I Essays on the Science of Religion 1861