Where does “tuneladora” come from?

tuneladora (Catalan) comes from Catalan tunelar, from Catalan túnel, from English Tunnel, from Old French tonel, from Old French tone, from Late Latin tunna, from Proto-Celtic tunna — hide, skin.

tuneladora (Catalan): tunnel boring machine, TBM, tunnelling machine a large machine used to excavate tunnels with a circular cross section

Definitions

  1. tunnel boring machine, TBM, tunnelling machine a large machine used to excavate tunnels with a circular cross section

Ancestry of “tuneladora”, step by step

tuneladora traces back through two separate lines of ancestry.

via Catalan tunelar

StepLanguageWordMeaning
1Catalantunelarto tunnel
2Catalantúneltunnel
3EnglishTunnelAn underground or underwater passage
4Old Frenchtonelbarrel
5Old Frenchtonelarge barrel
6Late Latintunnatun, box
7Proto-Celtictunnahide, skin

via Catalan Ador

StepLanguageWordMeaning
1CatalanAdor
Every word from Proto-Celtic tunnaEvery word from Late Latin tunnaEvery word from Old French tone