Where does “平方メートル” come from?

平方メートル (Japanese) comes from Japanese メートル, from French mètre, from Latin metrum, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

平方メートル (Japanese): square metre

Definitions

  1. square metre

Ancestry of “平方メートル”, step by step

平方メートル traces back through two separate lines of ancestry.

via Japanese メートル

StepLanguageWordMeaning
1Japaneseメートルa metre
2Frenchmètremetre/meter; first-person singular present...
3Latinmetruma measure
4Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
5Ancient Greek-τρονForms instrument nouns
6Proto-Hellenic-tronForms instrument nouns from verb stems
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via Japanese 平方

StepLanguageWordMeaning
1Japanese平方The second power of a number etc.; square; A...
2Chinese平方square as in square foot, square mile, square root; second power
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον