SUNNILY

pleasantly, cheerily, sunnily

(adverb) in a cheerful manner; “‘I’ll do the dishes,’ he said pleasantly”

Source: WordNet® 3.1

Etymology

Adverb

sunnily (comparative more sunnily, superlative most sunnily)

In a sunny fashion; optimistically

Source: Wiktionary

SUNNY

Sun"ny, a. [Compar. Sunnier; superl. Sunniest.]

1. Of or pertaining to the sun; proceeding from, or resembling the sun; hence, shining; bright; brilliant; radiant. "Sunny beams." Spenser. "Sunny locks." Shak.

2. Exposed to the rays of the sun; brightened or warmed by the direct rays of the sun; as, a sunny room; the sunny side of a hill. Her blooming mountains and her sunny shores. Addison.

3. Cheerful; genial; as, a sunny disposition. My decayed fair A sunny look of his would soon repair. Shak.

Sun"ny, n. (Zoöl.)

Definition: See Sunfish (b).

Source: Webster’s Unabridged Dictionary 1913 Edition