1. Occurring or continuing after one's death: a posthumous award.
2. Published after the writer's death: a posthumous book.
3. Born after the death of the father: a posthumous child.
[Middle English posthumus, from Late Latin, alteration (perhaps influenced by Latin humus, earth or humāre, to bury) of postumus, superlative of posterus, coming after; see POSTERIOR.]
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.