Where does “disamare” come from?

disamare (Italian) comes from Italian amare, from Latin amō, from Latin Deus, from Latin dẹ̄vos, from Old Latin deivos, from Proto-Italic deiwos, from Proto-Indo-European deywós, from Proto-Indo-European dyew- — to be bright; sky, heaven.

disamare (Italian): to unlove, to cease loving, to fall out of love...