Quick Definition
νηστεύω v. I fast
Strong's Definition
from 3523; to abstain from food (religiously)
KJV Usage: fast
UBS Dictionary of the Greek New Testament
verb | νηστεία · νῆστις
53.65 · Religious Activities · Fasting
to fast, fasting to go without food for a set time as a religious duty
MAT 4:2 · MAT 6:16 · MAT 6:16 · MAT 6:17 · MAT 6:18 · MAT 9:14 · MAT 9:14 · MAT 9:15 · MRK 2:18 · MRK 2:18 · MRK 2:18 · MRK 2:19 · MRK 2:19 · MRK 2:20 · LUK 5:33 · LUK 5:34 · LUK 5:35 · LUK 18:12 · ACT 13:2 · ACT 13:3
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
νηστεύω ; fut. νηστεύσω ; 1 aor. [inf. νηστεῦσαι (LK. v. 34 T WH Trtxt.)], ptep. νηστεύσας ; (fr. νῆστις, 4- V-) 5 to fast (Vulg. and eccles. writ. jejuno), i. 6. to abstain as a religious exercise from food and drink: either entirely, if the fast lasted but a single day, Mt. vi. 16-18; ix. 14sq.; Mk. ii. 18-20; Lk. v. 33, [34, 35]; xviii. 12; Acts x.30 RG; xiii. 2,[3]; or from customary and choice nourishment, if it continued several days, Mt. iv. 2, ef. xi. 18; νηστεύει συνεχῶς καὶ ἄρτον ἐσθίει μόνον μετὰ ἅλαTos καὶ τὸ ποτὸν αὐτοῦ ὕδωρ, Acta Thom. § 20. (Arstph., Plut. mor. p. 626 sq.; Ael. v. h. 5, 20; [Joseph. ec. Ap. 1, 34, 5 (where see Miiller)]; Sept. for sy.)
Mounce Concise Greek Dictionary
νηστεύω nēsteuō 20x
to fast, Mt. 4:2; 6:16, 17, 18; 9:15
Abbott-Smith Greek Lexicon
νηστεύω
(< νῆστις), [in LXX for צוּם;]
to fast (Arist., Aristoph., al.): Mt 4:2 6:16-18 9:14, 15, Mk 2:18-20, Lk 5:33-35 18:12, Ac 13:2, 3.†
Liddell-Scott-Jones — Greek-English Lexicon
νηστεύω (nēsteuō) — to fast. νηστ-εύω, fast, [NT+5th c.BC+]; νηστεύσαντες, opposed to ἐδηδοκότες, [Refs 4th c.BC+]
2. with genitive, abstain from, κακότητος [Refs 5th c.BC+]