yotzin.

Headword: 
yotzin.
Principal English Translation: 

single, without siblings (see Karttunen)

Orthographic Variants: 
yohtzin
IPAspelling: 
yohtsin
Frances Karttunen: 

YOHTZIN single, without siblings / único, unigénito (Z) [(3)Zp.126,231]. See IYOH.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 340.