da- - future tense prefix.*
h- - "you" singular, this is an "A" Class bound pronoun, used before a vowel.*
-e- - verb stem for "go"
-si - future tense suffix.
*Note: A morphing of sounds (called metathesis) occurs where the "dahe" form becomes "te". This is caused by the "h" and similar changes can be seen frequently in second person singular verb forms with additional prefixes. I.e. hwik'ti from-[wihik'ti] (you will go there)
(also see:hniwe'a)