If what your asking is for your name ot be translated into Dovahzul, then your name would be...

Mercy= "Aaz"

Helpfulness=  There is no word that I can find for this, but another word for helpful could be kind which would be "Fron"

Complaisance= There is no wrd that I can find for this, but another word for complaisance is kind which would be "Fron"

Grace= Dun 

Normally names are 3 words of power, but you do you :)

Your total name is "Aazfronfrondun" I think that it would sound better if you got rid of one of the "Fron"s.

"Aazfrondun" sounds cool!