Eximius non-litera

Eximius non-litera is a term used to describe animals, people or creatures that are unable to speak in any way possible, like telephatication, though some can be communicated through spiritual means. The term is a combination of the Latin word 'eximius', meaning super, and 'non-litera' is not actually Latin, basically a portmanteau of non, and literal, only the latter has been cut by litera.

The first usage of the term is unknown, though it was probably developed somewhere in Fantasia since the human times' Renaissance Era.

Though sometimes mistook with 'mute', the term has troubled and confused doctors who do not know well its definition and often associate it with 'mute'.

Because of this partially resolved issue, it has sometimes been used as an offensive term in some countries around galaxies, and in some places were even considered forbidden.

Origin and cause
It is not clear how it originated, nor is its cause. What is known is that it affects 2 out of 10 in every individual. There are cures now, but they are often shunned for price and doubt.