sēmĭ-sŏnans

antis, adj.

sono

I. halfsounding, semi-vocal: littera, i. e. a semivowel, App. de Mundo, 16, 29; Ter. Carm. Her. p. 2406 P.; Isid. 1, 4, 4.
Lewis & Short
A Latin Dictionary, 1879
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