Thykarann
From Wookieepedia, the Star Wars wiki.
Thykarann was a dialect of Shyriiwook spoken by the Wookiee species from Kashyyyk.
Thykarann was mainly used for technical talk, because its lexicon was rich in these fields. Comparatively, Shyriiwook was too emotive. However, apparently, any person fluent in Shyriiwook could easily understand Thykarann.
