Where does “ra sức” come from?

ra sức (Vietnamese) comes from Vietnamese rà, from Latin rēx, from Proto-Italic rēks, from Proto-Indo-European h₃rḗǵs, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.

ra sức (Vietnamese): to strive; to exert oneself

Definitions

  1. to strive; to exert oneself

Ancestry of “ra sức”, step by step

ra sức traces back through two separate lines of ancestry.

via Vietnamese rà

StepLanguageWordMeaning
1Vietnameseràto check
2Latinrēxking, ruler
3Proto-Italicrēksking
4Proto-Indo-Europeanh₃rḗǵsking, ruler
5Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just

via Vietnamese sức

StepLanguageWordMeaning
1Vietnamesesứcstrength; power
2Proto-Vietick-rəkstrong
3Old Chinese力—
Every word from Proto-Indo-European h₃reǵ- →Every word from Proto-Indo-European h₃rḗǵs →Every word from Proto-Italic rēks →
ra sức — Etymology, Origin & Word History | Etymology Explorer