pride, squatting with legs outstretched
倨 centers on an attitude of haughty self-importance: pride or arrogance. The physical sense of squatting with legs outstretched is a separate, concrete posture that may have contributed to the idea of taking up space in a presumptuous way.
倨 combines 亻 (person) with 居, which likely contributes the sound and may relate to sitting or dwelling. The exact historical development of the pride meaning is uncertain, but the character is often associated with an arrogant posture.
A person 亻 sitting 居 with legs outstretched, taking up too much space and looking down on others: that is pride.
For キョ, imagine a proud person named Kyo who always squats with legs outstretched, acting superior: Kyo -> キョ.