ὑποθήκ-η · hypothēk-ē — LSJ
suggestion, counsel, warning, Hdt. 1.156, 206, al.; ποιέειν τὰς Κροίσου ὑποθήκας ib. 211; ὑποθήκαις διακονεῖν Antipho 1.17; κατὰ τὴν Βίαντος ὑ. Arist. Rh. 1389b23, cf. 1368a2 (pl.); applied to didactic poems, such as Hesiodʼs, Isoc. 2.3,43, Phld. Po. 5.27, Hierocl. in CA Praef. p.417M.; instructions, Cic. Att. 2.17.3; ὑ. ἄνευ νόμων Ruf. ap. Orib. inc. 20.19; οὐ κατʼ ἰατρικάς ἐστιν ὑ. is not a matter for medical advice, Sor. 1.126; ὑποθήκας διδόναι Gal. 6.307; ποιήσασθαι ib. 405.
pledge, deposit, mortgage, D. 34.50, Arist. Oec. 1348b21, Supp.Epigr. 1.366.39 (Samos, iii B. C.), PCair.Zen. 504.4 (iii B. C.), PEnteux. 15.4 (iii B. C.), etc.; συγγραφὴ -θήκης PRein. 18.11 (ii B. C.); ἐπὶ ὑποθήκαις upon securities given, SIG 742.39, cf. 51 (Ephesus, i B. C.), al.; ὑ. ἔγγαιοι mortgages on land, Test.Epict. 5.6; also ἐν ὑποθήκῃ on deposit, PGrenf. 2.17.3 (ii B. C.).