Where does “rāmum” come from?

rāmum (Latin) comes from Latin rāmus, from Proto-Italic *wrād-mo-, from Proto-Indo-European wréh₂ds — root.

Ancestry of “rāmum”, step by step

StepLanguageWordMeaning
1Latinrāmus—
2Proto-Italic*wrād-mo-—
3Proto-Indo-Europeanwréh₂dsroot
Every word from Proto-Indo-European wréh₂ds →Every word from Proto-Italic *wrād-mo- →Every word from Latin rāmus →