1. A flower or cluster of flowers.
2. The condition or time of flowering: peach trees in blossom.
3. A condition or period of maximum development. See Synonyms at bloom1.
intr.v. blos·somed, blos·som·ing, blos·soms
1. To come into flower; bloom.
2. To develop; flourish: The child blossomed into a beauty.
[Middle English, from Old English blōstm; see bhel-3 in the Appendix of Indo-European roots.]
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.