The spelling of "Pariseau", a French surname, can be somewhat confusing for English speakers. The pronunciation is "pa.ʁi.so", with the stress on the second syllable. The "eau" ending in French is pronounced as "o" (similar to "oh" in English), and the "s" is silent. The "r" is pronounced in a way that is somewhat intermediate between the English "r" and "h" sounds. It's important to remember that in French, the spelling of a word does not always correspond directly to its pronunciation.
The word "Pariseau" is a French surname, and its etymology can be traced back to Old French. It is derived from the words "paris", meaning "a wall" or "a fortified city", and "eau", meaning "water" or "river". "Pariseau" thus roughly translates to "the wall by the water" or "the fortified city near the river". It likely originated as a locational surname, given to individuals who resided near a walled city or a river.