Nonsense names are great, like "MySQL" or "Kubernetes". Names that the people you're trying to sell it to recognize from normal language like "jails", "cockroachdb", not so much. If you're in a startup and you need to sell it to your CTO: whatever. If you're in a 2k+ employee company and you need to sell it to general management: you are not going to be using jails, or cockroachdbs, or anything else that makes non-tech people raise their eyebrows in the bad way when they hear/read them.