[L. somnus sleep, also personified as a divinity.] The god of sleep.

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a. 1599.  Peele, Sir Clyomon, xxi. Wks. (Rtldg.), 522–3. I creep out of my drowsy den when Somnus hath supprest The head of every valiant heart.

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1710.  trans. Quilletus’ Callipædia, III. 144/35.

        But as she mourn’d, kind Somnus gently stole
To her soft Eyes, and lull’d her sinking Soul.

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