something ripe, or something baked or cooked (see Molina)
Alonso de Molina:
icucic. cosa madura, o cosa cozida. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 34r. col. 1. Thanks to Joe Campbell for providing the transcription.