Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
circum-tŏno, ui, 1, v. a.,
- I. to thunder around; or, poet., to make a noise or clamor around: virum armis, Sil. 4, 254: aulam strepitu, id. 6, 216: montem undā, Claud. in Rufin. 1, 274.
- II. Trop.: hunc circumtonuit gaudens Bellona cruentis (the figure taken from the clanging of the war-trumpets), Hor. S. 2, 3, 223.