mixiui. ni. (pret. onimixiuh.) parir la mujer. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 57r. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
MĪXIHU(I) to give birth / partir la mujer (M), le da a luz, pare su hijo (T) [(1)Cf.99V, (3)Tp. 190, (3)Xp.70]. In T and X this is a transitive verb, but in M and C it ia intransitive. See ĪX-TLI.
MĪXIHUILIĀ applic. . MĪXIHU(I)
MĪXIHUĪHUA nonact. MĪXIHU(I) Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 149.