happy, blessed, fortunate, prosperous, lucky, successful (see Molina; example is in the first person singular, "yo," or I form)
Alonso de Molina:
quemmach nami. dichoso y bienauenturado yo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 88v. col. 2. Thanks to Joe Campbell for providing the transcription.