ἀντερείδω
Οὐ γὰρ ἀργίας ὤνιον ἡ ὑγίεια καὶ ἀπραξίας, ἅ γε δὴ μέγιστα κακῶν ταῖς νόσοις πρόσεστι, καὶ οὐδὲν διαφέρει τοῦ τὰ ὄμματα τῷ μὴ διαβλέπειν καὶ τὴν φωνὴν τῷ μὴ φθέγγεσθαι φυλάττοντος ὁ τὴν ὑγίειαν ἀχρηστίᾳ καὶ ἡσυχίᾳ σῴζειν οἰόμενος → For health is not to be purchased by idleness and inactivity, which are the greatest evils attendant on sickness, and the man who thinks to conserve his health by uselessness and ease does not differ from him who guards his eyes by not seeing, and his voice by not speaking
English (LSJ)
A set firmly against, χειρὶ χεῖρ' ἀντερείσαις clasping hand in hand, Pi.P.4.37; but ἄκναμπτον Ἥρᾳ μένος ἀν[τ]ερείδων Id.Pae.6.87; ἀντέρειδε τοῖς Ἐρεχθείδαις δόρυ E.Supp.702; ἀ. ξύλα [τῷ πύργῳ] set wooden stays or props against it, X.HG5.2.5; ἀ. βάσιν plant it firm, S.Ph.1403; λίθοι οἱ-οντες τὰς περιφερεῖς στέγας springers of a vault, Demetr.Eloc.13. II intr., stand firm, resist pressure, offer resistance, opp. ὑπείκω, X.Cyr.8.8.16, cf. Cyn.10.16, Pl.Ti.45c, Arist. MA698b18, Epicur.Fr.76 bis; exert counter-pressure, θέναρι ἀ. Hp. Fract.14; τὸ ὠθούμενον ἀ. ὅθεν ὠθεῖται offers resistance in the direction from which the pressure comes, Arist.Mech.858a26; πρός or περί τι, Plu.2.924d, 923e. 2 metaph., exert mutual pressure, of contending politicians, Phld.Rh.2.51 S. (dub.); simply, argue against, Sor.2.57.