If you’ve ever wanted a sophisticated yet easily understood word to help you prove a point, keep “ergo” in mind. It’s an adverb that essentially means “because of” or “therefore.” You might say, “Punctuality is super important to me; ergo, I didn’t go on a second date with the guy who was an hour late.” It’s taken directly from Latin, with “ergo” meaning “because of,” and if we trace it back to Old Latin, the phrase “e rogo” meant “from the direction of.”