The American Heritage® Dictionary of the English Language, 4th Edition
v. To lower in rank, prestige, or esteem. See Synonyms at degrade.
the GNU version of the Collaborative International Dictionary of English
v. To lower or depress; to throw or cast down.
v. To cast down or reduce low or lower, as in rank, office, condition in life, or estimation of worthiness; to depress; to humble; to degrade.
The Century Dictionary and Cyclopedia
To lower or depress, as a thing; bring down.
To reduce or lower, as in rank, estimation, office, and the like; depress; humble; degrade.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. cause to feel shame; hurt the pride of
Word Usage
"Coleridge was evidently one of those people who abase themselves excessively in the hope of never having to hear their faults expressed on the lips of others."