adj. bald·er, bald·est
1. Lacking hair on the head.
2. Lacking a natural or usual covering: a bald spot on the lawn.
3. Lacking treads: a bald tire.
4. Zoology Having white feathers or markings on the head, as in some birds or mammals.
5. Lacking ornamentation; unadorned.
6. Undisguised; blunt: a bald statement of policy.
[Middle English balled, probably from bal, ball; see BALL1. Sense 4, perhaps partly of Celtic origin; akin to Welsh bal, having a white streak on the forehead (of horses), Irish ball, spot, mark, and English blaze, white mark on the face of an animal; see BLAZE2.]
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.