mazaxocotl.

Headword: 
mazaxocotl.
Principal English Translation: 

a type of native plum (see Molina)

Alonso de Molina: 

mazaxocotl. ciruela desta tierra.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 50r. col. 2. Thanks to Joe Campbell for providing the transcription.

Attestations from sources in English: 

Spondias spp. (in the Anacardiaceae, same plant family as mangoes). These varied fruits are sweet, juicy, and delectable. They are still called ciruelas in Mexico, jocotes in Guatemala.
Alejandro de Ávila Blomberg, personal communication, 10 May 2022.