6 letters · 8 points in Scrabble
noun an edible tuber native to South America; a staple food of Ireland
noun annual native to South America having underground stolons bearing edible starchy tubers; widely cultivated as a garden vegetable; vines are poisonous
originBorrowed from Spanish patata, itself borrowed from Taíno batata (“sweet potato”).
Etymology from Wiktionary, CC BY-SA 3.0