GRUESOMELY
gruesomely
(adverb) in a gruesome manner; “he was gruesomely wounded”
Source: WordNet® 3.1
Etymology
Adverb
gruesomely (comparative more gruesomely, superlative most gruesomely)
In a gruesome manner
Source: Wiktionary
GRUESOME
Grew"some
Definition: , Grue"some, a. Etym: [From a word akin to Dan. gru horror,
terror + -some; cf. D. gruwzaam, G. grausam. Cf. Grisly.]
Definition: Ugly; frightful.
Grewsome sights of war. C. Kingsley.
Grue"some, a.
Definition: Same as Grewsome. [Scot.]
Source: Webster’s Unabridged Dictionary 1913 Edition