otlapaliuhcat metztli.

Headword: 
otlapaliuhcat metztli.
Principal English Translation: 

the full moon (see Molina)

Alonso de Molina: 

otlapaliuhcat metztli. luna llena.
Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 78r. col. 1. Thanks to Joe Campbell for providing the transcription.