Where does “primer” come from?

primer (Middle English) comes from Medieval Latin primarius, from Latin primus, from Latin prismos, from Latin prisemos, from Proto-Italic priisemos, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “primer”, step by step

primer traces back through two separate lines of ancestry.

via Medieval Latin primarius

StepLanguageWordMeaning
1Medieval LatinprimariusOne of the first, or first rank, chief,...
2Latinprimusfirst
3Latinprismos
4Latinprisemos
5Proto-Italicpriisemosforemost, first
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed

via Latin primarium

StepLanguageWordMeaning
1Latinprimariumnominative neuter singular of prīmārius; prayer...

Words derived from “primer

Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Italic priisemos