weibullEtymologyNamed after Swedish mathematician Waloddi Weibull, who described it in detail in 1951, though it was already known.weibull means A surname. Lexicurio rates it Sui generis — a strength score of 91 out of 100.nameA surname.nounAny of various probability distributions used to model the amount of time for which something can be used until it ceases to be operable.