'language-unrestricted' originates from the combination of 'language' and 'unrestricted', where 'language' refers to a system of communication and 'unrestricted' means not limited or confined.

The term 'language-unrestricted' evolved from the need to describe systems or processes that are not limited by language barriers.

Initially, it meant 'not confined by language', and this meaning has largely remained the same in modern usage.