o·ver·due (ō′vər-d, -dy)
1. Being unpaid when due: an overdue bill.
2. Coming or arriving after the scheduled or expected time: an overdue train. See Synonyms at tardy.
3. Expected or required but not yet having come about: an overdue apology.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.