Where does “tonelada métrica” come from?

tonelada métrica (Portuguese) comes from Portuguese tonel, from Old Portuguese tonel, from Old French tonel, from Old French tone, from Late Latin tunna, from Proto-Celtic tunna — hide, skin.

tonelada métrica (Portuguese): metric ton, ton megagram

Definitions

  1. metric ton, ton megagram

Ancestry of “tonelada métrica”, step by step

StepLanguageWordMeaning
1Portuguesetonelvat; tun; tun
2Old Portuguesetonelcask
3Old Frenchtonelbarrel
4Old Frenchtonelarge barrel
5Late Latintunnatun, box
6Proto-Celtictunnahide, skin
Every word from Proto-Celtic tunna →Every word from Late Latin tunna →Every word from Old French tone →