1. Capable of being understood: an intelligible set of directions.
2. Capable of being apprehended by the intellect alone.
[Middle English, from Old French, from Latin intellegibilis, intelligibilis, from intellegere, to perceive; see INTELLIGENT.]
in·tel′li·gi·bili·ty, in·telli·gi·ble·ness n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.