What does "abase" mean?

Abase: 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. Whosoever exalteth himself shall be abased. Luke xiv. ll. These words agree in the idea of bringing down from a higher to a lower state. Abase has reference to a bringing down in condition or feelings; as to abase one's self before God. Debase has reference to the bringing down of a thing in purity, or making it base. It is, therefore, always used in a bad sense, as, to debase the coin of the kingdom, to debase the mind by vicious indulgence, to debase one's style by coarse or vulgar expressions. Degrade has reference to a bringing down from some higher grade or from some standard. Thus, a priest is degraded from the clerical office. When used in a moral sense, it denotes a bringing down in character and just estimation; as, degraded by intemperance, a degrading employment, etc. "Art is degraded when it is regarded only as a trade."