ὑποκρίσις, in ethics, denotes dissimulation with regard to the moral or religious character. In other words, it signifies one who feigns to be what he is not; and is generally applied to those who assume the appearances of virtue or religion, without having anything in reality of either.

HYPOGÆUM, ὑπόγειον, formed of ὑπό under, and γῆ earth, in the ancient architecture, is a name common to all the parts of a building that are underground; as the cellar, butteries, and the like places. The term hypogeum was used by the Greeks and Romans for subterraneous tombs in which they buried their dead.

HYPOGEUM, τροπή, in astrology, is a name given to the celestial houses which are below the horizon; and especially the imum coeli, or bottom of heaven.