Lexical Definition

‎ἀσθενέω‎ asthenéō (as-then-eh'-o) be weak: weak G:V
from ‎ἀσθενής‎

be diseased, impotent folk (man), (be) sick, (be, be made) weak.

Usage: 11 forms in 15 verses
Form Translated As     In Verse(s)
ἠσθενήκαμεν have been weak 2Cor.11.21
ἠσθένει it was weak Rom.8.3
ἀσθενῶν being weak Rom.14.2
is being weak 1Cor.8.11
ἀσθενῶμεν may be weak 2Cor.13.9
ἀσθενῶ I am weak 2Cor.11.29
I may be weak 2Cor.12.10
ἀσθενοῦσαν being weak 1Cor.8.12
ἀσθενοῦντα being weak Rom.14.1
ἀσθενοῦμεν are weak 2Cor.13.4
ἀσθενούντων being weak Acts.20.35
ἀσθενεῖ is weak Rom.14.212Cor.11.292Cor.13.3
ἀσθενήσασ having become weak Rom.4.19

Abbott-Smith

ἀσθενέω, -ῶ (< ἀσθενής), [in LXX chiefly for כּשׁל;]
to be weak, feeble: Ac 20:35, Ro 8:3, II Co 11:21 12:10 13:4, 9; c. dat., πίστει (Cremer, 527), Ro 4:19 14:1; same implied, Ro 14:2, 21, I Co 8:11, 12, II Co 11:29; εἰς, II Co 13:3. Specif., of bodily debility, to be sick: Mt 25:36, 39, Lk 4:40, Jo 4:46 5:3, 7, 13 11:1-3, 6, Ac 9:37, Phl 2:26, 27, II Ti 4:20, Ja 5:14; οἱ ἀσθενοῦντες, the sick: Mt 10:8 (MM, s.v.), Mk 6:56, Lk 9:2, Ac 19:12.†

Abbott-Smith References

Book Refs
Matthew 10:8 · 25:36 · 25:39
Mark 6:56
Luke 4:40 · 9:2
John 4:46 · 5:3 · 5:7 · 5:13 · 11:1 · 11:6
Acts 9:37 · 19:12 · 20:35
Romans 4:19 · 8:3 · 14:1 · 14:2 · 14:21
1 Corinthians 8:11 · 8:12
2 Corinthians 11:21 · 11:29 · 12:10 · 13:3 · 13:4 · 13:9
Philippians 2:26 · 2:27
2 Timothy 4:20
James 5:14

Liddell-Scott-Jones

Included with: ἀσθενέω-εια, ,

want of strength, weakness, [Refs 5th c.BC+]; especially feebleness, sickliness, [Refs 5th c.BC+]

__2 disease, sickness, [Refs 2nd c.BC+]; δι᾽ ἀσθενέωειαν[NT]
__3 . βίου poverty, [Refs 5th c.BC+]
__4 in moral sense, feebleness, weakness, τῆς ἀνθρωπίνης φύσεως[Refs 5th c.BC+] to be weak, feeble, sickly, . μέλη to be weak in limb, [Refs 5th c.BC+]; . ἀσθενέωειαν [NT+5th c.BC+]; ἠσθένησε he fell sick, [Refs 4th c.BC+]sick man, [Refs 5th c.BC+]; ἠσθενηκότα[Refs 2nd c.BC+]
__2 to be needy, [Refs 5th c.BC+]; ἠσθενηκότες, of those unable to pay taxes, [Refs 1st c.BC+]
__3 with infinitive, to be too weak to do a thing, not to be able.., [Refs 1st c.AD+]
__4 decline, ἠσθένησεν ἡμέρα εἰς τὴν ἑσπέραν[LXX]

LSJ Scripture Refs: Gal.4.13Matt.10.8LXX.Judg.19.9