Only ahrk and sizaan are part of the canon lexicon. Most of the rest of the words are part of the now-defunct fanmade "Legacy" lexicon, and are as follows:

Rutkei - Dangerous

Truk - Thing

Praak - Slither

Occur (English word, not Dovahzul. The Legacy word for "occur" is koros.)

Unazom - Happiness

Ahrk - And (This is a canon word)

Sizaan - Lost (This is also a canon word)

Ontzos - Again

Waan - If

Vis - Can

Estaak (Not found in the most recently updated Legacy dictionary, might be a word that was deleted from the dictionary before the site switched to a focus on the canon lexicon)

Alur (Also not found in the Legacy dictionary)

Vos - Able

All I had to do was plug these into the Legacy translator, which can be found HERE. I could help you get a more accurate translation if you give me all of these words in the proper context, rather than as individual words. Might make it easier to understand the whole phrase.