Where does “prímdacht” come from?

prímdacht (Old Irish) comes from Old Irish prímda, from Old Irish prím, from Latin prīmus, from Latin prīsmos, from Proto-Italic priisemos, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “prímdacht”, step by step

StepLanguageWordMeaning
1Old Irishprímdaforemost, principal, preeminent
2Old Irishprímfirst
3Latinprīmus—
4Latinprīsmos—
5Proto-Italicpriisemosforemost, first
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Italic priisemos →