potato

English borrowed "potato" from Spanish "patata", which Spanish in turn borrowed from Taíno "batata", meaning sweet potato.

The word crossed from Taíno into Spanish and then into English, shifting along the way from naming the sweet potato to naming the potato we know today.

"Potato" is a doublet of "batata" — both English words trace back to the same Taíno root, just borrowed at different times and through different paths.