tr.v. suf·fused, suf·fus·ing, suf·fus·es
1. To spread through or over, as with liquid or light: "The sky above the roof is suffused with deep colors" (Eugene O'Neill).
2. To fill thoroughly or permeate, as with a quality or emotion: music that is suffused with sadness. See Synonyms at imbue.
[Latin suffundere, suffūs- : sub-, sub- + fundere, to pour; see gheu- in the Appendix of Indo-European roots.]
suf·fusive (-fysĭv, -zĭv) adj.
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.