ὑπονόστησις
From LSJ
Οὐκ ἔστι σιγᾶν αἰσχρόν, ἀλλ' εἰκῆ λαλεῖν → Silere non est turpe, sed frustra loqui → nicht Schweigen schändet, sondern Schwätzen auf gut Glück
English (LSJ)
εως, ἡ,
A retirement, sinking, subsiding, θαλάσσης Plu. Ant.3; of the Nile, Hld.9.22 (pl.); ὑ. ἀέρος εἰς γῆν, as a definition of an earthquake, Anaxag. ap. D.L.2.9; τοῦ θερμοῦ Gal.1.689: metaph., ἀλαζονείας Ph.Fr.102 H.