👉 Sotadic, also known as a Sotadict or a Sotadicton, is a type of language that is defined by its use of an unusual vowel sound or combination of vowels. The term was first used in the 19th century to describe a specific class of languages that had a distinctive feature of having only one vowel sound. In this particular context, sotadic languages are those that have a single vowel sound that appears at regular intervals throughout their language. This