Definition of potato root in US English:

potato root

noun

  • 1The tuber or plant of a potato or sweet potato. Now rare.

  • 2The root of a potato plant.

Origin

Late 16th century; earliest use found in George Peckham (d. 1608), colonial adventurer. From potato + root.

Pronunciation

potato root

/pəˈteɪtəʊ ˌruːt/