Adverb
In an immortal manner.
Source: Webster's dictionaryWe passionately long that there may be another life in which we shall be similar to what we are here below. But we do not pause to reflect that, even without waiting for that other life, in this life, after a few years we are unfaithful to what we have been, to what we wished to remain immortally. Marcel Proust
He spoke, the son of Kronos, and nodded his head with the dark brows, and the immortally anointed hair of the great god swept from his divine head, and all Olympos was shaken. Homer
I just finished Lynsey Sands latest vampire book, IMMORTALLY YOURS. Source: Internet