IPA: /ˈkʌmfɪli/
KK: /ˈkəmfɪli/
In a way that provides comfort or ease.
She settled into the chair comfily, enjoying the warmth of the sun.
Comfily → It is formed from "comfy" (a colloquial shortening of "comfortable", which comes from Latin "comfortare", meaning to strengthen or soothe) and the suffix "-ly" (meaning in a manner). The word "comfily" means in a manner that is comfortable or cozy.
Think of being in a 'comfortable' state and how you would act 'in that manner' — that's what 'comfily' means.