Where does “asa” come from?

asa (Old Latin) comes from Proto-Italic āzā, from Proto-Indo-European h₂eHs- — to be/become dry; to burn, to glow; hearth.

Ancestry of “asa”, step by step

StepLanguageWordMeaning
1Proto-Italicāzāaltar
2Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth
Every word from Proto-Indo-European h₂eHs-Every word from Proto-Italic āzā