Origin: Latin suffix -al
Idiom neutral has 2 different meanings across 2 categories:
an artificial language proposed for use as an auxiliary international language; based on Volapuk but with a vocabulary selected on the basis of the maximum internationality of the roots
An artificial language, created by Waldemar Rosenberger in 1902, partially derived from Volapük, with a vocabulary consistently selected on the basis of the maximum internationality of the roots.