συνεπιδίδωμι

A. give up wholly or willingly, ἑαυτόν τινι or εἴς τι Plb. 31.24.5, 32.5.10; ἐς πάντα τὰ καλῶς ἔχοντα ἑαυτόν Supp.Epigr. 4.601.8 (Teos, ii B.C.), cf. 3.468.16 (Thess., i B.C.); τῇ Κλωθοῖ σεαυτόν M.Ant. 4.34; simply, συνεπέδωκε αὐτοσαυτὰν ἁ σύνοδος SIG 698.6 (Delph., ii B.C.); τὰ σώματα προκινδυνεῦσαι D.H. 3.15, cf. Inscr.Prien. 109.156 (ii B.C.).
2. join in presenting an application, PAmh. 2.85.24 (i A.D.), Sammelb. 7363.25 (ii A.D.), etc.
3. offer together, τὴν χεῖρά τινι Them. Or. 7.90a.
II. intr., increase along with or together, Plu. 2.448d.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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