Cocopin.

Headword: 
Cocopin.
Principal English Translation: 

a name of a ruler in Tepetlaoztoc who married Acaxochitl (Acaxoch, Acaxuch), a daughter of Nezahualcoyotl, wbo was a ruler of Tetzcoco. When Cocopin died, Acaxochitl succeeded him as ruler.

Attestations from sources in English: 

"He is named Cocopin (111.10) a name meaning 'bloomed-out' or 'the one who speaks cheerfully.'"
Eduard Seler, ‎John Eric Sidney Thompson, ‎abd Francis B. Richardson, Collected Works in Mesoamerican Linguistics and Archaeology, 1998, 16.