A priori (languages)

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This is the article about constructed languages. For other uses of the term "a priori", see a priori.

An a priori language is any constructed language whose vocabulary is not based on existing languages, unlike a posteriori constructed languages. Examples of a priori languages include Ro, Solresol, Klingon Language, and languages of Middle-Earth.

Some a priori constructed languages try to categorize their vocabulary, and these are known as taxonomic languages.

• Either to express an underlying philosophical system,
• To make it easier to memorize the completely new vocabulary,
• Or to remove what would be considered an unfair learning advantage for native speakers of a "source language", if the vocabulary were chosen from an already existing (natural) language.

By contrast, a posteriori constructed languages are ones whose vocabulary is based on an existing languages, either as a variation of one existing language (e.g., Latino sine flexione) or as a mixture of various languages (e.g., Interlingua).eo:Apriora lingvo hu:A priori nyelvek ja:アプリオリ言語 pl:Języki aprioryczne pt:Língua artificial a priori ru:Априорный язык