even though not; considering that it is not; or given that is it not (see Molina)
IPAspelling:
mɑːsinɑhmo
Alonso de Molina:
macinamo. aunque no, o dado que no, o puesto caso que no. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 50v. col. 2. Thanks to Joe Campbell for providing the transcription.