GUILTILY
guiltily
(adverb) in the manner of someone who has committed an offense; “she blushed guiltily as she spoke”
Source: WordNet® 3.1
Etymology
Adverb
guiltily (comparative more guiltily, superlative most guiltily)
In a guilty manner; as if guilty.
Source: Wiktionary
Guilt"i*ly, adv.
Definition: In a guilty manner.
GUILTY
Guilt"y, a. [Compar. Gultier; superl. Guiltiest.] Etym: [AS. gyltig
liable. See Guilt.]
1. Having incurred guilt; criminal; morally delinquent; wicked;
chargeable with, or responsible for, something censurable; justly
exposed to penalty; -- used with of, and usually followed by the
crime, sometimes by the punishment.
They answered and said, He is guilty of death. Matt. xxvi. 66.
Nor he, nor you, were guilty of the strife. Dryden.
2. Evincing or indicating guilt; involving guilt; as, a guilty look;
a guilty act; a guilty feeling.
3. Conscious; cognizant. [Obs.] B. Jonson.
4. Condemned to payment. [Obs. & R.] Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition