UPTHUNDER

Etymology

Verb

upthunder (third-person singular simple present upthunders, present participle upthundering, simple past and past participle upthundered)

(poetic, archaic, intransitive) To send up a noise like thunder.

Source: Wiktionary

Up*thun"der, v. i.

Definition: To send up a noise like thunder. [R.] Coleridge.

Source: Webster’s Unabridged Dictionary 1913 Edition