The word ubiquitous was coined more than two hundred years after ubiquity; it's far from unusual to see nouns be there first. Through Modern Latin, uibiquity traces to the Latin word ubique, meaning "everywhere" (you can see the connection to the current definition). This was composed of two parts: ubi, meaning "where", and que, which held many definitions, including "and", "any", and "also", but in this case stood in as the "every". Ubi- is reconstructed as having derived from the Proto-Indo-European root kwe, which was an important part of many pronouns and ironically ubiquitous, making up parts of the words why, which, where, who, how, either, neuter, quantity, quote, quibble, quality, and quotient. My favorite descendant of the root, though, is the Latin word que, which makes up the second part of ubiquity. That's right: ubiquity comes from a PIE root so ubiquitous that it composes both halves of the word. Etymology is awesome.
Adam Aleksic, a rising sophomore studying linguistics and government at Harvard University, has been described as the internet's sixth most famous etymologist. He also has disturbing interests in politics, vexillology, geography, board games, conlanging, and law.