Youd expect that somebody named Waters used to live beside some waters, just as somebody named Rivers used to live beside a river. It aint so. Just pronounce the name Walters as if you were from Phiwadewphia: Waowters. The dark English l was swawwowed up in the fowwowing consonant: cf. walk, calm. So the name Waters is a variant of Walters, as Wat was the old diminutive for Walter. That gives us Wats Son = Watson, Watts, and Little Wats Son = Watkins, Watkinson, and Little Walter = Watt. The unit of electrical power was named after the scientist James Watt. So, if your surname is Waters, thats related to the word wattage, but it is not related to water. The name originally denoted the ruler of an army: cf. English wield, German Gewalt, German Heer, army. The underlying idea is the same as in the Greek name Polemarchus: war-ruler, army-ruler. Romance language speakers couldnt pronounce that initial w: they heard it with a g coming before it (round your lips, pronounce a hard w, and youll understand why). So we have Italian Gualtieri, French Gautier. English, that most unusual language, has doublets beginning with g or w, depending on the road the word took to get here: guard, ward; guerrilla, warrior.