Confused? Don't worry! Celeriter is a Latin adverb which means "quickly". Took me more than a minute to master the pronunciation but you may already be wondering, what is this guy talking about! Well today we are discussing yet another Android 4.4.2 KitKat flavor - The CeleriterRom.
Since I haven't really tested it quite enough, I'd let the developer describe it for you (for now of course!). Take a look at a couple of screenshots straight from the OP -