per-tŏno, ŭi, 1, v. n. and a.,
to thunder violently (late Lat.).—Trop.: contra aliquem, to thunder away at any one , Hier. Ep. 53, n. 8: quando vero vox illa pertonuit, id. adv. Helv. 20.— Act. , to proclaim aloud , thunder forth , announce : aliquem, Hier. Ep. 61, ad Pammach. 4: gloriam alicujus, Ambros. Serm. Fer. 2, Pentec.