Where does “primeless” come from?

primeless (English) comes from English Prime, from French prime, from Old French prim, from Latin prīmus, from Latin prīsmos, from Proto-Italic priisemos, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

primeless (English): Without prime numbers; Not requiring priming or...

Definitions

  1. Without prime numbers; Not requiring priming or...

Ancestry of “primeless”, step by step

primeless traces back through two separate lines of ancestry.

via English Prime

StepLanguageWordMeaning
1EnglishPrimeFirst in importance, degree, or rank
2Frenchprimereward; prize; bonus; premium
3Old Frenchprim
4Latinprīmus
5Latinprīsmos
6Proto-Italicpriisemosforemost, first
7Proto-Indo-Europeanper-before, in front; first; to go through
8Proto-Indo-Europeanpr̥tóspassed , crossed

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Italic priisemos