Where does “ר״מ” come from?

ר״מ (Hebrew) comes from Aramaic רישא, from Proto-Semitic *raʔš- — head.

ר״מ (Hebrew): A prime minister, a P.M; A yeshiva teacher

Definitions

  1. A prime minister, a P.M; A yeshiva teacher

Ancestry of “ר״מ”, step by step

StepLanguageWordMeaning
1Aramaicרישאhead; top, head
2Proto-Semitic*raʔš-head
Every word from Proto-Semitic *raʔš- →Every word from Aramaic רישא →
ר״מ — Etymology, Origin & Word History | Etymology Explorer