Quick Definition
ἄρρωστος, ον Adj infirm, sick, ill
Strong's Definition
from 1 (as a negative particle) and a presumed derivative of 4517; infirm
KJV Usage: sick (folk, -ly)
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἄρρωστος, -ον, (ῥώννυμι, q. ν.), without strength, weak; sick: Mt. xiv. 14; Mk. vi. 5, 13; xvi.18; 1 Co. xi. 30. ({Hippocr.], Xen., Plut.)
Mounce Concise Greek Dictionary
ἄρρωστος arrōstos 5x
ill, sick, an invalid, Mt. 14:14; Mk. 6:5, 13; 16:18; 1 Cor. 11:30
Abbott-Smith Greek Lexicon
ἄρρωστος, -ον
(< ἀ- neg., ῥώννυμι), [in LXX: III Ki 14:5Α, Ma 1:8 (חלה), Si 7:35*;]
feeble, sickly: Mt 14:14, Mk 6:5, 13 16:[18], I Co 11:30.†
Moulton & Milligan — Vocabulary of the Greek NT
ἄρρωστος. SyiZ 8 5817 (Delphi, in dialect, ii/B.c.) ἀτελὴς ἁ ὠνὰ ἔστω, εἰ μὴ ἄρρωστος γένοιτο Σιῶσος. noticed any instance of the adj. in the papyri, but both verb and subst. are common. For the verb cf. P Petr I. 30(1)4 (middle of iii/B.c.) (= Witkowski *, p. 5) τὸν ὄν[τ]α ἐν Μέμφει ἀρρωστοῦντα, P Hib I. 731° (B.c. 243-2) εἰ οὖν μὴ ἠρρωστήσαμεν, P Par 4051 (B.c. 164-58) (= Witkowski *, P- 71) ἀγωνιῶ, μή ποτε ἀρ[ρ]ωστεῖ τὸ παιδάριον, P Kyl II. 6δ15 (B.c, 89) ὥ[στε] διὰ τὰς πληγὰς ἀρρωστήσασα κατακεῖσαι (2. 6. -σθαι) κινδυνεύουσα τῶι βίωι (which shows that ἀ. may represent something very serious), BGU IV. 1125 (time of Augustus) ἃς (sc. ἡμέρας) δὲ ἐὰν ἀρτακτήσηι (/. ἀτακτήσηι) HL ἀρρωστήσηι. For the subst. see the very interesting petition which the priests of the temple at Socnopaei Nesus present to the Strategus, asking for certain favours at his hands, seeing that ‘‘in his sickness” he was healed by their σοα-- ἐπεὶ οὖν σέσωσαι ἐν τῆι ἀρρωστίαι ὑπὸ τοῦ Σοκνοπαῖτος θεοῦ μεγάλου (P Amh II. 3553, B.c. 132), also P Tebt I. 445 ζ (B.C. 114) χάριν τῆς περιεχούσης με ἀρρωστίας, ‘on account of the sickness from which I am suffering,” 70. 521° (c. B.c. 114) δι pe (/. διὰ τό pe) ἐν βαρυ[τέϊρᾳ (see Proleg. p. 78) ἀρρωστίᾳ κῖσ[θαι] ἐνδεὴς οὖσα τῶν ἀναγ[καίων], “since I am seriously ill, being in want of the necessaries of life” (Edd.), and P Hawara 5615 δ. (probably late i/A.D.) (= Archiv v. p. 382) μαρτυρήσει δέ σί(οι) [1]σίδωρος, ὅτι ἀρρωστίαν ἰσοθάνατο(ν) [ἐξ]ήντλησα. See also 5y/// 490° (iii/B.C.) ἐν[π]ετόϊν]των πολλῶν ἄγίαν ὀλεθρί)ων Γἀρρω]στίηἹμάτων καὶ τῶν ἰατρῶν τῶν [δαμ])οσ{ιευόν]των ἐν Tat πόλει ἀρρωσστησάντων. The adj. is MGr, as are the derived verb and noun. We do not happen to have
Liddell-Scott-Jones — Greek-English Lexicon
ἄρρωστος (arrōstos) — ill. ἄρρωστ-ος, ον, (ῥώννυμι) weak, sickly, [Refs 4th c.BC+]. adverb -τως, ἔχειν[Refs 5th c.BC+]
2. in moral sense, weak, feeble, τὴν ψυχήν[Refs 5th c.BC+]
3. ἀρρωστότερος ἐς τὴν μισθοδοσίαν remiss in payment, [Refs 5th c.BC+]