Matthew 21:13προσευχῆς
And He declared to them, “It is written: ‘My house will be called a house of prayer.’ But you are making it ‘a den of robbers.’”
Mark 9:29προσευχῇ
Jesus answered, “This kind cannot come out, except by prayer.”
Luke 6:12προσευχῇ
In those days Jesus went out to the mountain to pray, and He spent the night in prayer to God.
Acts 2:42προσευχαῖς
They devoted themselves to the apostles’ teaching and to the fellowship, to the breaking of bread and to prayer.
Romans 1:10προσευχῶν
in my prayers at all times, asking that now at last by God’s will I may succeed in coming to you.
Revelation 5:8προσευχαὶ
When He had taken the scroll, the four living creatures and the twenty-four elders fell down before the Lamb. Each one had a harp, and they were holding golden bowls full of incense, which are the prayers of the saints.

Abbott-Smith

προσ-ευχή, -ῆς, ἡ
(προσεύχομαι), [in LXX chiefly for תְּפִלָּה ;]

1. prayer to God: Mat.17:21 (WH, R, txt., om.) Mat.21:22, Mrk.9:29, Luk.22:45, Act.3:1 6:4 10:31, Rom.12:12, 1Co.7:5, Col.4:2; pl., Act.2:42 10:4, Rom.1:10, Eph.1:16 Col.4:12, 1Th.1:2, Phm 4 22, 1Pe.3:7 4:7, Rev.5:8 8:3-4; οἶκος προσευχῆς, Mat.21:13, Mrk.11:17, Luk.19:46" (LXX) ; π. καὶ δέησις, Eph.6:18, Php.4:6; pl., 1Ti.2:1 5:5; ἡ π. τοῦ θεοῦ, prayer to God (ef. Wis.16:28), Luk.6:12; πρὸς τ. θεόν, before ὑπέρ, Act.12:5; pl., Rom.15:30; Hebraistically (B1., § 38, 3), προσευχῇ προσεύχεσθαι, Jas.5:17 (EV, prayed fervently).

2. a place of prayer: of a synagogue (3Ma.7:20, seel.; see Charles, APOT, i, 173; for other exx., see Kennedy, Sources, 114); of a place in the open (FlJ, Ant., xiv, 10, 23), Act.16:13, 16.†
SYN.: see: δέησις
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.