According to the traditional version, proper as well as institutional names related to the Incas are thought to be of Quechua origin, and, accordingly, they have been etymologized as such. However, on close inspection, those etymologies have proven to be totally erratic. This article attempts to demonstrate, by means of the "biographical" examination of two such words, that contrary to what is currently assumed, quite a number of those names come from a Puquina source.