In Tawantinsuyu, Incan society had a seven day week. The days could be enumerated as following:
Monday: AWAKI puncha Tuesday: AWKARIK puncha Wednesday: CHILLAY puncha Thursday: KULLKA puncha Friday: CHASKA puncha Saturday: WACHA puncha Sunday: INTI puncha
(please note: small/subtle differences could exist among different dialects, but roughly every kichwa / quichua / quechua / qechua / runasimi dialect has these days pronounced equally).
The only day I care about is the last: INTI puncha (or punchaw, punchay, p'achay...), which stands for sun's day.
When I think about Europe as invaders in roughly 1500, I then see that by looking in references like this, or wikipedia, the seventh day was renamed domingo instead of dies solis in at much IV or V century.
Question: From where did Quichua-speaking people get the reference to the sun in the 7th day? Considering European people who reached the Inca empire had references to God instead of the sun for that day?