somnĭālis

is, adj.

somnium

I. dreambringing, an epithet of Hercules, Inscr. Fabr. p. 692, 130; Inscr. Rein. cl. 10, 4.— Hence, adv.: somnĭālĭter, in a dream (late Lat.), Fulg. Myth. 2, 17 dub.
Lewis & Short
A Latin Dictionary, 1879
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