I / in-sŏnus
adjective

in-sŏnus

fem. in-sŏna · neut. in-sŏnum
without sound; noiseless; silent
without sound, noiseless, silent (post-class.).
Lit.: passus, Amm. 27, 12; cf. gressus, id. 29, 5: vestigium, App. M. 3, p. 138, 22.—
by extension
Transf.: litterae, i. e. mutae, App. de Mundo, p. 66, 29.