Where does “パイオニア” come from?

パイオニア (Japanese) comes from English pioneer, from Middle French pionnier, from Old French peonier, from Old French peon, from Latin pedō, from Latin pēs, from Ancient Greek μέτρον, from Ancient Greek -τρον — Derives agent nouns from verbs, denoting someone...

パイオニア (Japanese): pioneer one who goes before

Definitions

pioneer one who goes before

Ancestry of “パイオニア”, step by step

Step	Language	Word	Meaning
1	English	pioneer	One who goes before, as into the wilderness,...
2	Middle French	pionnier	infantryman
3	Old French	peonier	foot soldier
4	Old French	peon	pawn; footman; a foot soldier
5	Latin	pedō	—
6	Latin	pēs	a foot, in its senses as
7	Ancient Greek	μέτρον	something used to measure: measure, rule, weight;...
8	Ancient Greek	-τρον	Forms instrument nouns
9	Proto-Hellenic	-tron	Forms instrument nouns from verb stems
10	Proto-Indo-European	-trom	Forms nouns denoting a tool or instrument
11	Proto-Indo-European	-tḗr	Derives agent nouns from verbs, denoting someone...

Every word from Proto-Indo-European -tḗr →Every word from Ancient Greek -τρον →Every word from Ancient Greek μέτρον →