ὑποκονίω
From LSJ
Ἀναβάντα γὰρ εἰς τὴν ἀκρόπολιν, καὶ διὰ τὴν ὑπερβολὴν τῆς λύπης προσκόψαντα τῷ ζῆν, ἑαυτὸν κατακρημνίσαι → For he ascended the acropolis and then, because he was disgusted with life by reason of his excessive grief, cast himself down the height
English (LSJ)
[ῑ],
A put dust to the roots, esp. by digging (cf. ὑποσκάπτω), Id.HP2.7.5. II Med., of wrestlers, sprinkle oneself with dust, in preparation for the contest, τὼ χεῖρε ὑποκονίεται Com.Adesp.401: metaph., Plu.2.614d.