The Spanish word 'cenote', meaning a natural sinkhole or pit filled with water, comes from the Yucatec Maya word 'tz'onot', which meant 'well' or 'abyss'. This borrowing reflects the geographical and cultural significance of these natural formations in the Yucatan Peninsula, where the Maya civilization flourished. The Spanish adaptation simplified the Maya pronunciation, dropping the complex 'tz' sound for a simpler 'c' sound that was more natural in Spanish phonology.

As 'cenote' is borrowed directly from Yucatec Maya, there aren't any simpler or more common Spanish words that share its etymology. This is typical of words that Spanish borrowed from indigenous American languages to describe local features or concepts that were new to European settlers.

The English word 'cenote' is borrowed directly from Spanish and ultimately from Maya, maintaining the same meaning of a natural sinkhole or pit. Since this is a relatively recent borrowing describing a specific geological feature, there aren't other common English words that share its etymology.