People who worshiped the fertility goddess Pachamama (4)

I believe the answer is:

inca

(Other definitions for inca that I've seen before include "Native Peruvian" , "Ancient Peruvian Indian" , "who lived in S America" , "Member of old South American Indian people of Peru" , "S. Am native, lord in Quechua" .)

I've seen this clue in The New York Times.

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