συγκατατίθημι

A. deposit together or at the same time, ἐμαυτὴν συγκατέθηκα τάφῳ Epigr.Gr. 367 (Cotiaeum), cf. Poll. 8.157:—Med., Is. 6.32.
2. Med., ς. τινὶ τὴν αὐτὴν δόξαν περί τινος (where δόξαν represents ψῆφον) put down the same vote or opinion with another, agree entirely with him, Pl. Grg. 501c: with dat. only, agree with, assent or conform to, ταῖς δόξαις Epicur. Sent. Vat. 29; τοῖς παρακαλουμένοις Philipp. ap. D. 18.166; ταῖς ἐπιβολαῖς ς. τινί Plb. 3.71.5, etc.: ς. ὅτι . . agree that . ., Arist. Top. 116a11: abs., assent, Sphaer.Stoic. 1.141, Phld. Sign. 38, A.D. Pron. 49.12, BSA 18.140 (Beroea, ii A.D.), etc.: later in Act., ‐θεῖναι εἴς τι agree to, Porph. VP 61, Iamb. VP 33.236: cf. συγκατάθεσις.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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