Where does “ama” come from?

ama (Galician) comes from Old Portuguese ama, from Medieval Latin amma, from Latin mamma, from Latin ferō, from Proto-Italic ferō, from Proto-Indo-European bʰéreti, from Proto-Indo-European bʰēr- — shiny, light brown.

ama (Galician): inflection of amar: ## third-person singular...