What is "coxcox"

In Aztec mythology, Coxcox was the only male survivor of a worldwide flood.

The Aztecs believed that only Coxcox and his wife, Xochiquetzal, survived the flood. They took refuge in the hollow trunk of a cypress, which floated on top of the water and finally banked on a mountain in Culhuacan.

They had many children, but all of them were dumb. The great spirit took pity on them, and sent a dove, which attempted to teach the children how to speak. Fifteen of them succeeded, and from these, the Aztecs believed, the Toltecs and Aztecs were descended.