Where does “morpion” come from?

morpion (French) comes from French pion, from Middle French pion, from Old French peon, from Latin pedō, from Latin pēs, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron — Derives agent nouns from verbs, denoting someone...

morpion (French): crabs, pubic lice

Definitions

  1. crabs, pubic lice

Ancestry of “morpion”, step by step

morpion traces back through two separate lines of ancestry.

via French pion

StepLanguageWordMeaning
1Frenchpionpawn; counter; supervisor
2Middle Frenchpion
3Old Frenchpeonpawn; footman; a foot soldier
4Latinpedō
5Latinpēsa foot, in its senses as
6Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
7Ancient Greek-τρονForms instrument nouns
8Proto-Hellenic-tronForms instrument nouns from verb stems
9Proto-Indo-European-tromForms nouns denoting a tool or instrument
10Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via French mordre

StepLanguageWordMeaning
1Frenchmordreto bite; to encroach
2Old Frenchmordreto bite
3Vulgar Latinmorderepresent active infinitive of mordeō;...
4Latinmordēre
Every word from Proto-Indo-European -tḗr