1) Comfily 2) In financial comfort 3) In mental comfort 4) In physical comfort 5) Snugly 6) To do something easily 7) Well 8) Without stress 1) Cosily 
• (adv.) In a comfortable or comforting manner.
Com'fort·a·bly adverb In a comfortable or comforting manner. « Speak ye comfortably to Jerusalem. Is. xl. 2. » 
[adv] - in physical comfort 2. [adv] - in mental comfort
adverb in mental comfort; without stress; `he works comfortably on three continents`