Where does “ro-mhotha” come from?

ro-mhotha (Scottish Gaelic) comes from Scottish Gaelic ro, from Old Irish ró, from Proto-Celtic ɸro, from Proto-Indo-European pró, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “ro-mhotha”, step by step

ro-mhotha traces back through two separate lines of ancestry.

via Scottish Gaelic ro

StepLanguageWordMeaning
1Scottish Gaelicrovery, too, much, exceedingly; before
2Old Irish
3Proto-Celticɸro
4Proto-Indo-Europeanprótoward, leading to
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed

via Scottish Gaelic motha

StepLanguageWordMeaning
1Scottish Gaelicmothacomparative degree of mòr
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European pró