ixmana. nitla. (pret. onitlaixman.) ygualar suelo, o cosa semejante. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 45v. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
ĪXMAN(A) vt to level, even something / igualar suelo o cosa semejante (M), lo aplana, lo empareja (T) [(3)Tp.217]. This implies ĪXMANI ‘something equal or level,’ which appears in. M. See ĪX-TLI, MAN(A). Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 115.