altĭtŏnans

antis, adj.

alte-tonans

I. thundering from on high: Juppiter, Enn. Ann. 2, 6: pater altitonans, Cic. Carm. Div. 1, 12.—Hence, in gen., of wind, loud-roaring: Volturnus, * Lucr. 5, 745.
Lewis & Short
A Latin Dictionary, 1879
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