noy is a verb of quality, or a "be" verb. It cannot take an object, but it can be used as an adjective by placing it after a noun. noy vav means "the father is famous." (a complete sentence). vav noy means "the famous father" (a noun phrase). Also, there are two different -mo' suffixes that have exactly the same meaning. One to be placed on verbs to make a sentence subordinate and one to be placed on nouns or noun phrases.
The given sentence:
vavDaj noymo' mIy toral translates as
"Because of his famous father, Toral brags." (Note that the -mo' here is the noun suffix being placed on a noun phrase.)
The Klingon version for,
"Because his father is famous, Toral brags," would be:
noymo' vavDaj, mIy toral (Note that the -mo' here is the verb suffix being placed on the verb of a subordinate sentence.)