da- future tense prefix.*
h-- "s/he", 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 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. I.e. hwik'ti from-[wihik'ti] (you will go there)
(also see:hniwe'a)