Tataltepec, Santa María
Yucu Quesi

totonqui:  something hot  
tepe-tl:  hill
-c(o):  locative suffix
“Hill of Heat”

yucu:  hill
quesi:  scorching heat
"Hill of Scorching Heat"

Mary Elizabeth Smith, Picture Writing in Ancient Southern Mexico: Mixtec Place Signs and Maps, Civilization of the American Indian Series 124 (Norman: University of Oklahoma Press, 1973) 58-59.

Genealogy of Tlazultepec.