Literary Tshyak attempted to emulate Old Tshyak but often showed influence from later varieties of Tshyak such as Middle Tshyak. Examples of such influence included:
- Adopting the Tshyak pronunciation of the day, except for not losing posttonic syllables, when read aloud
- Adopting Middle Tshyak register
- Adopting Middle Tshyak definiteness/number marking for animate nouns
- Adopting Middle Tshyak pronouns
- Adopting Middle Tshyak evidential, egophoricity, and mirativity marking
- Adopting Middle Tshyak compounds
- Sometimes adopting Middle Tshyak perfectivity marking (e.g. if a writer forgot what the Old Tshyak member of a perfective/imperfective pair that was lost in Middle Tshyak was)
- Posttonic syllables in pronunciation when read aloud
- Verb inflection
- Word order
- Analytic verbal constructions, aside from the serial verbs and compound verbs inherited from Old Tshyak
- Non-possessive first and second person pronouns when despective or honorific ones are not being used