Middle voice of a primary verb; to wish; by implication, to pray to God -- pray, will, wish.
1. to pray to God (the Sept. in this sense for הִתְפַּלֵּל and עָתַר): τῷ Θεῷ (as very often in classical Greek from Homer down (cf. Winers Grammar, 212 (199); Buttmann, 177 (154))), followed by the accusative with an infinitive, Acts 26:29; πρός τόν Θεόν (Xenophon, mem. 1, 3, 2; symp. 4, 55; often in the Sept.), followed by the accusative with infinitive 2 Corinthians 13:7; ὑπέρ with the genitive of person, for one, James 5:16 where L WH text Tr marginal reading προσεύχεσθε (Xenophon, mem. 2, 2, 10). (Synonym: see αἰτέω, at the end)
2. to wish: τί, 2 Corinthians 13:9; followed by the accusative with an infinitive 3 John 1:2 (others, adhere to the religious sense, to pray, pray for, in both the preceding passages); Acts 27:29; ηὐχόμην (on this use of the imperfect cf. Winers Grammar, 283 (266); Buttmann, § 139, 15; (Lightfoot on Philemon 1:13)) εἶναι, I could wish to be, Romans 9:3. (Compare: προσεύχομαι.)