What are words that start with k that are related to Ancient Rome?

Oh, dude, like, Words that start with "K" related to ancient Rome? Let's see... well, there's "Kalends" which was the first day of the month in the Roman calendar, and then there's "Kaiser" which is a German Word for emperor, and, uh, oh yeah, "Kilometer" which they probably used to measure how far they had to march to conquer new territories. So yeah, those are some K Words for ya in the ancient Roman world.