The word “plumber” derives from the Latin word “plumbum” which means lead. Given that many words in English have varied etymology depending on how you use the (noun or adjective) the word is going to be written differently. That’s the case with the word plumber; in Latin plumber is “plumbarius” which was used to described someone whose work was to take care of the lead pipes and lead fixtures for water channels of ancient Rome. The word “plumbers” has Latin roots, from plumbus meaning lead . On the other hand the word “lead” has many possible roots, most likely from the West Germanic word “loudhom”, but there are more stem words which are perfect candidates from Celtics languages and other Indo-European Languages.
Despite the eminent relationship between the word and the ancient profession, modern plumbing is more than just lead pipes and fixtures. Urban cities need very complex plumbing systems, for which many other materials other than lead are used. Modern plumbing systems today involve a lot of mathematics, physics, chemistry, and even robotics. It seems that the profession has outgrown the name. Hopefully it does not get to the point of a plumber saving us from a giant mutant turtle like in the Mario Bros video games.
The plumbing profession has been around since the ancient Babylonia circa 6000-3000 BC. Babylonia in the arid desserts of the middle east was known in the ancient world by its beautiful terraces with elevated gardens and beautiful fountains. Babylonia plumbing systems were very complex supplying a city in the dessert with water aqueducts, perhaps without plumbing great civilizations like Babylon would have not progressed as fast as they did.