ETYM Latin chaos chaos, Greek chaos, from chainein (root cha) to yawn, to gape, to open widely. Related to Chasm.
1. A state of extreme confusion and disorder; SYN. pandemonium, bedlam, topsy-turvydom, topsy-turvyness.
2. The formless and disordered state of matter before the creation of the cosmos.

(Greek mythology) The most ancient of gods; the personification of the infinity of space preceding creation of the universe.