Okan

General information
Old Okan is the ancestor language of the Okanic languages. It is an Indo-European language somewhat related to the Tocharian languages. Old Okan is largely influenced by Sino-Tibetan languages.

Phonology
Not all sounds are found in native Indo-European inventory. Many are found more exclusively in loanwords.

Vowels
Old Okan uses the following diphyhongs: ai, au, ei, ou.