ὄρει

From LSJ

Ὁ αὐτὸς ἔφησε τὸν μὲν ὕπνον ὀλιγοχρόνιον θάνατον, τὸν δὲ θάνατον πολυχρόνιον ὕπνον → Plato said that sleep was a short-lived death but death was a long-lived sleep

Gnomologium Vaticanum, 446

Russian (Dvoretsky)

ὄρει: в сложн. словах = ὄρος.