suntithomō

συντίθημι,
used by Refs 8th c.BC+middle, see below:—passive (see. below), but σύγκειμαι is more frequently as passive:— place or put together, τὴν οὐρὴν καὶ τὸν σπλῆνα.. συνθεὶς ὁμοῦ Refs 5th c.BC+; σ. ἱμάτια, opposed to ἀνασείειν, fold them together, Refs 5th c.BC+; σ. σκέλη, opposed to ἐκτείνειν, Refs; opposed to διαιρεῖσθαι, Refs 5th c.BC+; σ. ἄρθρα στόματος close the lips, Refs 5th c.BC+; εἰς τὸ οὖλον (αυλον codex) σ. τὴν κόμην, = calamistrat, Refs —passive, τὸ συντίθεσθαι καθ᾽ ὁντινοῦν τρόπον ῥῖγος οὐκ ἀγαθόν ἐστι any sort of combination of shivering (with other symptoms), Refs 2nd c.AD+
2 technical uses,
2.a in Mathematics texts, add together, of numbers, Refs 5th c.BC+; τό τε ἀρχαῖον καὶ τὸ ἔργον principal and interest, Refs 4th c.BC+: Geometry texts, of lines and figures, Refs 3rd c.BC+
2.b in Mathematics texts also, of the transformation of a ratio componendo, Refs 4th c.BC+
2.c Logic, combine the terms of a proposition, Refs 4th c.BC+; also, use the fallacy of composition Refs
2.d Rhet., accumulate, joined with ἐποικοδομεῖν (to form a climax), Refs
2.e σ. λόγον make up an account, Refs 3rd c.BC+
II put together constructively, so as to make a whole, πεντηκοντέρους καὶ τριήρεας (as a bridge) Refs 5th c.BC+; λίθους, of builders, Refs 5th c.BC+; πλίνθους, ξύλα, Refs 5th c.BC+; τὰ κομισθέντα Refs 5th c.BC+
II.2 construct, frame, τὸ θνητὸν γένος Refs 5th c.BC+; ὁ συνθείς the creator, Refs:—passive, to be constructed, of the material universe, opposed to διαλύεσθαι, Refs 4th c.BC+
II.2.b σ. τι ἀπό τινος compose or make one thing of or from another, Refs 5th c.BC+; εἴδωλον οὐρανοῦ ξυνθεῖσ᾽ ἄπο (Reiske for ὕπο) Refs 5th c.BC+; δυοῖν ἅμιλλαν ξ. strive for two things at once, Refs 5th c.BC+
II.3 construct or frame a story, συνθέντες λόγον Refs 5th c.BC+; narrate in writing, τὰ Ἑλληνικά Refs 5th c.BC+; compose, σ. μύθους, ποίησιν, μελῳδίαν, ὄρχησιν, Refs 5th c.BC+ —passive, perfect συντέθειταιRefs; περὶ ὀλίγας οἰκίας αἱ.. τραγῳδίαι συντίθενται Refs 4th c.BC+
II.4 in Mathematics texts, of the synthesis of a geometrical problem, opposed to ἀναλύω, Refs 3rd c.AD+; συντεθήσεται τὸ πρόβλημα οὕτως the synthesis of the problem will proceed thus, Refs 3rd c.BC+
II.5 frame, devise, contrive, ὁ συνθεὶς τάδε the framer of this plot, Refs 5th c.BC+; rarely in good sense, εὖ πρᾶγμα συντεθὲν ὄψεσθε Refs 4th c.BC+
II.6 put together, take in, comprehend, παιδὸς μόρον Refs 5th c.BC+ putting things shortly together, speaking briefly, Refs 5th c.BC+
III commit to a person's care, deliver to him for his own use or that of others, Refs 3rd c.BC+; γνώριζε οὐχ ὑπάρχον παρ᾽ ἡμῖν ἀργύριον τοσοῦτο ὥστε ἱκανὸν συνθεῖναι Πυρρίχῳ Refs 3rd c.BC+; τινὶ ὀστᾶ, ἐπιστολάς, πλῆθος χρυσίου, etc., Refs 2nd c.BC+
III.2 αὐτοὶ δ᾽ ἔνοχοι εἴημεν τῷ ὅρκῳ ὁπηνίκ᾽ ἂν εὖ συνθῶμεν perhaps as soon as we have duly delivered (or executed) this declaration, Refs 1st c.BC+; συνθεὶς τούτους μου τοὺς λιβέλλους ἐπιδίδωμι τῇ σῇ λαμπρότητι Refs 6th c.AD+
IV collect, conclude, infer, Refs 2nd c.BC+
B middle συντίθεμαι, used by Refs 8th c.BC+aorist 2 and in signification Refs
B.I put together for oneself, i.e. observe, give heed to, σύνθετο θυμῷ βουλήν Refs 8th c.BC+; and, simply, perceive, hear, κλαιούσης ὄπα σύνθετο Refs 8th c.BC+ do thou take heed, Refs 8th c.BC+
B.I.2 set in order organize, δύναμιν Refs 5th c.BC+
B.II agree on, conclude (compare συνθήκη), ἄνδρεσσι κακοῖς συνθέμενοι φιλίην Refs 6th c.BC+; συντίθεσθαι συμμαχίην, ὁμαιχμίην τισί, Refs 5th c.BC+.á; τὰς ξυνθήκας ἂς ξυνέθεντο Refs 5th c.BC+; σ. ναῦλον agree upon the fare, Refs 5th c.BC+; ταῦτα συνθέμενοι having agreed on these points, Refs 5th c.BC+with Refs 5th c.BC+ —passive, τοῦ συντεθέντος χρόνου agreed upon, Refs 5th c.BC+
B.II.2 with infinitive, covenant, agree to do, συνέθευ παρέχειν φωνάν Refs 5th c.BC+: with infinitive future, ξυνέθεντο ἥξειν Refs 5th c.BC+; σ. τινί followed by infinitive future, συνθέμενοι ἡμῖν.. ἀντιώσεσθαι Refs 5th c.BC+infinitive must be supplied in the phrases, κατὰ (i.e. καθ᾽ ἃ) συνεθήκαντο, καθ᾽ ὅτι ἂν συνθῶνται, etc., Refs 5th c.BC+
B.II.3 absolutely, make a covenant, ἔβαν συνθέμενος Refs 7th c.BC+; αὐτὸς σαυτῷ συνέθου Refs 5th c.BC+; συνθέσθαι πρός τινα come to terms with him, Decrees cited in Refs 4th c.BC+; περί τινος πρὸς ἀλλήλους Refs 1st c.BC+; also, bet, wager, Refs 4th c.BC+
B.II.4 vote with, support, τούτοις Refs 5th c.BC+; assent to, πᾶσι τοῖς προκειμένοις Refs 2nd c.AD+; ἵνα μὴ δόξω συνθέσθαι τῇ τοῦ πραγματικοῦ ἀγνοίᾳ Refs 3rd c.AD+
B.II.5 conclude, infer Refs 4th c.BC+ —passive, τὰ ὕστερον -τεθησόμεναRefs

H. G. Liddell, R. Scott, H. S. Jones, A Greek-English Lexicon (9th ed., 1925–1940) — digitised by the Perseus Digital Library and corrected and expanded by Tyndale House, Cambridge, via STEPBible-Data's TFLSJ table, CC BY 4.0. Covers all of Greek literature, not just the Bible.