Where does “desamor” come from?

desamor (Spanish) comes from Spanish amor, from Latin amor, from Latin amō, from Latin Deus, from Latin dẹ̄vos, from Old Latin deivos, from Proto-Italic deiwos, from Proto-Indo-European deywós — to be bright; sky, heaven.

desamor (Spanish): indifference, coldness; lovelessness, unlove;...