terrisonus
Could not find terrisono in Logeion dictionaries.
terrisono Adjective: masculine ablative singular, Adjective: masculine dative singular, Adjective: neuter ablative singular, Adjective: neuter dative singular of terrisonus
terrĭsŏnus, a, um, adj. [terreo-sono],
- sounding terribly: stridor venientis Alani, Claud. Laud. Stil. 1, 109.
terrisonus, a, um (terror u. sono), schrecklich ertönend, -schallend, Claud. laud. Stil. 1, 109.
~e vocis roncho juvenem abigens
terrĭsŏnus, a, um (terreo, sono), qui fait un bruit effrayant : Claud. Cons. Stil. 1, 109.
Hæc non tantum Terrisono fremitu..... significabat insaniam.