Derived from the Greek, cataphase means affirmation. A cataphatic theology positively affirms what God is, rather than denying what He is not (apophatic theology), so it is also called affirmative or positive theology.
Examples of positive concepts about God would be His Goodness, His Wisdom, His Omnipotence… This means that human beings can know God in a partial and analogous way, using human language to express divine truths.