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From LSJ

ὕπνος δεινὸν ἀνθρώποις κακόνsleep is a terrible evil for humans (Menander, Sententiae monostichoi 1.523)

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Russian > Greek

εὔθυμος, ἀσπάσιος, ἄσμενος, ἡδύς, ἄμεμπτος