ancestry or blood kinship (see Molina); lineage (see Karttunen)
IPAspelling:
mekɑyoːtɬ
Alonso de Molina:
mecayotl. abolorio, o parentesco de consanguinidad. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 55r. col. 1. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
MECAYŌ-TL lineage / abolorio o parentesco de consaguinidad (M) This is indirectly attested in MECA-TL. See MECA-TL, -YŌ. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 142.
Attestations from sources in English:
Lineage relates to the word line or cord (mecatl), connecting people.