Prince

Question 1

Inveterate

Answer 1

someone who does something very often and cannot stop doing it:
I never trust anything he says - the man’s an inveterate liar.

Question 2

Mercenary

Answer 2

interested only in the amount of money that you can get from a situation:
He had some mercenary scheme to marry a wealthy widow.

Question 3

Auxiliary

Answer 3

giving help or support, especially to a more important person or thing:
auxiliary staff/nurses