νέρτεροι

From LSJ

δεξιὸν εἰς ὑπόδημα, ἀριστερὸν εἰς ποδάνιπτρα → the right foot into a shoe, the left into a foot-bath | of one who is ready for anything

Source

Russian (Dvoretsky)

νέρτεροι: οἱ жители подземного царства, т. е. усопшие Aesch., Soph.