1. Indicative of shame; ashamed: a shamefaced explanation.
2. Extremely modest or shy; bashful.
[By folk etymology from obsolete shamefast, bashful, ashamed, from Middle English, from Old English sceamfæst : sceamu, shame + fæst, fixed; see FAST1.]
shamefac′ed·ly (-fā′sĭd-lē) adv.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.