I have trouble going near CockroachDB because of its name. It's absolutely unjustifiable from an engineering perspective, but the effect (for me, at least) is real.
MongoDB because mongo is a derogartory word in my language. It is an abbreviation of Mongoloid, was (apparently) used to describe people with Down syndrome, thought I've never heard it used for that. It's more colloquially used to describe people who act wierd or something that are stupid or made in a wierd way.
Svelte, the javascript framework is also something I've kind of avoided so far due to its name. While it doesn't really mean anything in my native tongue as far as I know, it is a very plausible word/spelling and it kinda just sounds unappealing. I can't help but reading it like that either.
They should rename to TardigradeDB.
Either way, both using CockroachDB and participating in this thread put cockroaches on my mind a lot more than I'd really prefer. +1 for TardigradeDB.