smooth, as in an easy life with richness and prosperity (see Molina)
IPAspelling:
yɑmɑːnkɑːyoːtɬ
Alonso de Molina:
yamancayotl. blandura, yper metaphoram. quiere dezir, riqueza y prosperidad. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 30v. col. 2. Thanks to Joe Campbell for providing the transcription.
Frances Karttunen:
YAMĀNCĀYŌ-TL softness, richness / blandura, y per metaphoram quiere decir riqueza y prosperidad (M) [(1)Cf.53r]. See YAMĀNQUI. Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 334.