montaña
/monˈtaɲa/ · A2 · noun · f
mountain
⛰️ montaña = mount + -aña: Latin mons, montem, same root as English mountain
From Latin montanea, built on mons (mount). English mountain is the same word via French, so swap -tain for -taña. Like English a mountain of work, una montaña de also means a lot or a bunch of something.