From kolla ("glue"); to glue, i.e. (passively or reflexively) to stick (figuratively) -- cleave, join (self), keep company.
Thayer's Greek Lexicon
Strong's 2853: κολλάω
κολλάω, κόλλω: passive, present κολλωμαι; 1 aorist ἐκολλήθην; 1 future κολλεθήσομαι (Matthew 19:5 L T Tr WH); (κόλλα gluten, glue); properly, to glue, glue to, glue together, cement, fasten together; hence universally, to join or fasten firmly together; in the N. T. only the passive is found, with reflexive force, to join oneself to, cleave to; the Sept. for דָּבַק: ὁκονιορτόςὁκολληθειςἡμῖν, Luke 10:11; ἐκολλήθησαναὐτῆςαἱἁμαρτίαιἄχριτοῦοὐρανοῦ, her sins were such a heap as to reach even unto heaven (that is, came to the knowledge of heaven), Revelation 18:5, G L T Tr WH (ἐκολλ. ἡψυχήμουὀπίσωσου, Psalm 62:9 (); αἱἄγνοιαίἡμῶνὑπερήνεγκανἕωςτοῦοὐρανοῦ, 1 Esdr. 8:72 (74); ὕβριςτέβιητέοὐρανόνἱκει, Homer Odyssey 15, 329; 17, 565). of persons, with the dative of the thing, κολλήθητιτῷἅρματι join thyself to etc. Acts 8:29; with the dative of person, to form an intimate connection with, enter into the closest relations with, unite oneself to (so the Epistle of Barnabas 10, 3f, 5, 8 [ET] also with μετά and the genitive of person, ibid. 10, 11 [ET]; 19, 2 [ET]. 6; Clement of Rome, 1 Cor. 15, 1 [ET]; 30, 3 [ET]; 46, 2 [ET] (cf. Lightfoot's note), 4): τῇγυναικί, Matthew 19:5 L T Tr WH; τῇπόρνη, 1 Corinthians 6:16 (Sir. 19:2); τῷκυρίῳ, 1 Corinthians 6:17 (2 Kings 18:6; Sir. 2:3); to join oneself to one as an associate, keep company witlb Acts 5:13; Acts 9:26; Acts 10:28; to follow one, be on his side, Acts 17:34 (2 Samuel 20:2; 1 Macc. 3:2 1 Macc. 6:21); to join or attach oneself to a master or patron, Luke 15:15; with the dative of the thing, to give oneself steadfastly to, labor for (A. V. cleave to): τῷἀγαθῷ, Romans 12:9, ἀγαθῷ, κρίσειδίκαια, the Epistle of Barnabas 20, 2 [ET]; τῇεὐλογία, so cleave to as to share, Clement of Rome, 1 Cor. 31, 1 [ET]. (Aeschylus Ag. 1566; Plato, Diodorus, Plutarch, others) (Compare: προσκολλάω.)
Matthew 19:5 - V-FIP-3S GRK:μητέρα καὶ κολληθήσεται τῇ γυναικὶ NAS: AND MOTHER AND BE JOINED TO HIS WIFE, INT: mother and will be joined with the wife
Luke 10:11 - V-APP-AMS GRK:κονιορτὸν τὸν κολληθέντα ἡμῖν ἐκ NAS: of your city which clings to our feet KJV: which cleaveth on us, INT: dust that having clung to us out of
Luke 15:15 - V-AIP-3S GRK:καὶ πορευθεὶς ἐκολλήθη ἑνὶ τῶν NAS: he went and hired himself out to one KJV: he went and joined himself to INT: And having gone he joined himself to one of the
Acts 5:13 - V-PNM/P GRK:οὐδεὶς ἐτόλμα κολλᾶσθαι αὐτοῖς ἀλλ' NAS: dared to associate with them; however, KJV: durst no man join himself to them: but INT: no one dared join them but
Acts 8:29 - V-AMP-2S GRK:Πρόσελθε καὶ κολλήθητι τῷ ἅρματι NAS: Go up and join this KJV: and join thyself to this INT: Go near and join yourself to the chariot
Acts 9:26 - V-PNM/P GRK:Ἰερουσαλὴμ ἐπείραζεν κολλᾶσθαι τοῖς μαθηταῖς NAS: he was trying to associate with the disciples; KJV: he assayed to join himself to the disciples: INT: Jerusalem he attempted to join himself to the disciples
Acts 10:28 - V-PNM/P GRK:ἀνδρὶ Ἰουδαίῳ κολλᾶσθαι ἢ προσέρχεσθαι NAS: who is a Jew to associate with a foreigner KJV: that is a Jew to keep company, or INT: for a man a Jew to unite himself or come near
Acts 17:34 - V-APP-NMP GRK:δὲ ἄνδρες κολληθέντες αὐτῷ ἐπίστευσαν NAS: men joined him and believed, KJV: men clave unto him, INT: moreover men having joined themselves to him believed
Romans 12:9 - V-PPM/P-NMP GRK:τὸ πονηρόν κολλώμενοι τῷ ἀγαθῷ NAS: what is evil; cling to what is good. KJV: that which is evil; cleave to that which is good. INT: evil cleaving to good
1 Corinthians 6:16 - V-PPM/P-NMS GRK:ὅτι ὁ κολλώμενος τῇ πόρνῃ NAS: do you not know that the one who joins himself to a prostitute KJV: that he which is joined to an harlot INT: that he that is joined to the prostitute
1 Corinthians 6:17 - V-PPM/P-NMS GRK:ὁ δὲ κολλώμενος τῷ κυρίῳ NAS:But the one who joins himself to the Lord KJV: But he that is joined unto the Lord is INT: he who however is joined to the Lord