Quick Definition
μεσίτης, ου, ὁ n.m. a mediator, go-between
Strong's Definition
from 3319; a go-between, i.e. (simply) an internunciator, or (by implication) a reconciler (intercessor)
KJV Usage: mediator
UBS Dictionary of the Greek New Testament
noun, m. | -ου | μεσόω
31.22 · Hold a View, Believe, Trust · Agree, Consent
gobetween, mediator (derivative of μεσιτεύω ‘to bring about an agreement,’ 31.21) one who causes or helps parties to come to an agreement, with the implication of guaranteeing the certainty of the arrangement
40.6 · Reconciliation, Forgiveness · Reconciliation
mediator, one who reconciles a person who acts as a mediator in bringing about reconciliation A mediator may be spoken of in a number of different ways, often idiomatically, for example, ‘one who stands in the middle,’ ‘one who speaks to both,’ ‘one who cuts palavers,’ or ‘one who causes arguments to cease.’ It is also possible, however, to regard μεσίτης as being related to the process of causing agreement between the parties in question. For this aspect of the meaning of μεσίτης, see 31.22.
1 Though in μεσίτης[b] there is an important aspect of communication, the focal feature is not primarily communication but reconciliation, and accordingly μεσίτης[b] is considered in this subdomain rather than in one of the subdomains of Domain 33 Communication.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
μεσίτης, -ov, ὁ, (μέσος), one who intervenes between two, either in order to make or restore peace and friendship, or to form a compact, or for ratifying a covenant; a medium of communication, arbitrator, (Vulg. [and A. V.] mediator): 6 μεσίτης [generic art. cf. W. § 18, 1 sub fin.], i.e. every mediator, whoever acts as mediator, ἑνὸς οὐκ ἔστι, does not belong to one party but to two or more, Gal. iii. 206. Used of Moses, as one who brought the commands of God to the people of Israel and acted as mediator with God on behalf of the people, ib. 19 (cf. Deut. ν. 5; hence he is called μεσίτης καὶ διαλλακτής by Philo also, vit. Moys. iii. § 19). Christ is called peo. θεοῦ x. ἀνθρώπων, since he interposed by his death and restored the harmony between God and man which human sin had broken, 1 Tim. ii. 5; also μεσ. διαθήκης, Heb. viii. 6; ix.15; xii. 24. (Polyb. 28, 15,8; Diod. 4, 54; Philo de somn. i. § 22; Joseph. antt. 16, 2,2; Plut. de Is. et Os. 46; once in Sept., Job ix. 88.) Cf. Fischer, De vitiis lexx. N. T. p. 351 sqq.
Mounce Concise Greek Dictionary
μεσίτης mesitēs 6x
one that acts between two parties; a mediator, one who interposes to reconcile two adverse parties, 1 Tim. 2:5; an arbitrator, one who is the medium of communication between two parties, a mid-party, Gal. 3:19, 20; Heb. 8:6; 9:15; 12:24*
Abbott-Smith Greek Lexicon
† μεσίτης, -ου, ὁ
(< μέσος), [in LXX: Jb 9:33 (בַּיִן)*;]
an arbitrator, mediator: Ga 3:19; c. dupl. gen. pers., θεοῦ κ. ἀνθρώπων, I Ti 2:5; c. gen. rei, διαθήκης, He 8:6 9:15 12:24; ὁ δε μ. ἑνὸς οὐκ ἔστιν, Ga 3:20 (v. Lft., in l.; and for exx. of this word in π., v. MM, xvi).†
Moulton & Milligan — Vocabulary of the Greek NT
μεσίτης = “arbiter” is common in connexion with legal transactions, e.g. P Lille 281 (iii/B.c.) αὐτοῖς ἐδώκαμεν μεσίτην Aap[iJev[a, P Cattaouit* (before B.c. 87) (= Chrest. II. p. 98) ὃ κράτιστος διοικητὴς Ιουλιανὸς ὁ διέπων τὰ κατὰ τὴν δικαι[ο]δοσίαν ἠθέλησεν σὲ μεσείτην ἡμῶν καὶ κριτὴν γενέσσθαι περὶ ὧν ἔχομεν πρὸς τοὺς ἀντιτεταγμέν[ο]υς, P Rein 448 (A.p. 104) Άκυλος ὁ κατασταθεὶς κριτὴς μεσίτ(ηΞ) ᾿Απολλωί(νίον), P Goodsp Cairo 2911: 5. (¢, A.D. 150) ἐάν σοι δόξῃ μεσείτην ἡμεῖν δὸς ἵνα ἡ ἀντίδικος ἀποκαταστήσῃ τῇ συνηγορουμένῃ τὸ. . . , “1 it seems good to you, give us an arbiter in order that the defendant may restore to the plaintiff the...” (Ed.). In P Lond 370 (ii/iii a-p.) =TII. p. 251) mention is made several times of a μεσίτης, who may be the “surety” for a debt. The reference is to business transactions in P Strass I. 41 (A.D. 250) παρακαταθέσίθα]. τὰ δύο τάλζα]ντα παρὰ κοινῴ μεσείτῃ Κολλούθῳ, BGU II. 4198 (A.D. 276-7) (= Chrest. I. p. | 437) παρόντων μεσιτῶν, CPR 1. 197% (A.D. 339) ὃ μετάξυ μεσίτης, and P Oxy X. 129819 (iv/A.D.) σὺ τούτου μεσίτης, “‘you being intermediary in this.”’ For the subst. μεσιτεία cf. BGU IT. 4459(a.D. 148-9) ἐπὶ μεσιτίᾳ τῶν ὑπαρχόντων... ἀρουρῶν, 23. 1. 98% (a.p. 211) οὐκ ἔμεινεν τῇ γενομένῃ μεσιτίᾳ--οἱ a man who did not discharge his duties as trustee, the late P Lond 11327 (vi/a.D.) (=I. p. 201) συνβέβηκεν μεσητίαν γεϊνέσ]θαι μέσων εἰρηνικῶν ἀνδρῶν, and Vett. Val. p. 257 μεσιτείας κρίσεων.
Liddell-Scott-Jones — Greek-English Lexicon
μεσίτης (mesitēs) — mediator. μεσῑτ-ης, ου, ὁ, mediator, umpire, arbitrator, [NT+3rd c.BC+]; stakeholder, [Refs 3rd c.AD+]
2. feminine μεσῖτις, ιδος, φιλίας μεσῖτιν τράπεζαν παραθέμενοι [Refs 2nd c.AD+]
II. in a middle position, of a limb, [Refs 2nd c.AD+]