I'm still thinking of a real name atm but what if we have a theme that incorporates the name of the different servers.
Cypress: cone-like tree (nature above surface) green
Cobalt: silver-ish metal (underground) silver blue
Crimson: strong red color (could refer to nether) blood red
Each of these names describe a key element of minecraft. They also have 2 syllables.
idk just throwing up some potential names that fits with the other names.