1. A North American sunflower (Helianthus tuberosus) having yellow, rayed flower heads and edible tubers.
2. The tuber of this plant. Also called sunchoke; In both senses also called girasol.
[By folk etymology from Italian girasole, sunflower; see GIRASOL.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.