Hippogriff
The hippogriff is officially an animal that’s half griffin & half horse. However, horses are usually grammar prefixes in Greek, so the hippo-gryph could be a pun with επικρυπτω epi-krypto for “disguised”, with επικρυφος epi-kryphos for “unknown”, and with Latin apocryphus for “not meant for the public”. The spook rulers never appear to us in their true form, but are always disguised or unknown, a fact that’s not meant for the public!
Greek epi-krypto = disguised, secret
Greek, Latin, English apo-kryphos = secret, untrue, not approved for the public
apocryphal : of doubtful authenticity, or lacking authority; of dubious veracity; of questionable accuracy or truthfulness — English (Wikt)
apocryphus : secret, not approved for public reading; apocryphal — Latin (Wikt)
ἀπόκρῠφος apókruphos : hidden, concealed, secret, unknown; obscure, recondite — Ancient Greek (Wikt)