Quick Definition
Ifatten
Strong's Definition
to thicken, i.e. (by implication) to fatten (figuratively, stupefy or render callous)
Derivation: from a derivative of G4078 (πήγνυμι) (meaning thick);
KJV Usage: wax gross
Thayer's Greek Lexicon
παχύνω: 1 aorist passive ἐπαχυνθην; (from παχύς (thick, stout); cf. βραδύνω; ταχύνω); to make thick; to make fat, fatten: τά σώματα, Plato, Gorgias, p. 518 c.; βοῦν, de rep., p. 343 b.; ἵππον, Xenophon, oec. 12, 20. Metaphorically, to make stupid (to render the soul dull or callous): τάς ψυχάς, Plutarch, mor., p. 995 d. (i. e. de esu carn. 1, 6, 3); νοῦν, Philostr. vit. Apoll. 1, 8; παχεῖς τάς διανοίας, Herodian, 2, 9, 15 (11 edition, Bekker); τήν διάνοιαν, Aelian v. h. 13, 15 (Latinpingue ingenium) (cf. Winer's Grammar, 18); ἐπαχύνθη ἡ καρδία (Vulg.incrassatum (A. V. their heart is waxed gross)): Mat_13:15; Act_28:27, after Isa_6:10 (for μΕα δΗωΐΡξΕο).
Mounce Concise Greek Dictionary
παχύνω pachunō 2x
to fatten, make gross; met. pass. to be rendered gross, dull, unfeeling, Mat_13:15 ; Act_28:27
Abbott-Smith Greek Lexicon
παχύνω
( <παχύς , thick),
[in LXX : Deu_32:15 , Isa_6:10 ( H8082 ), al. ;]
to thicken, fatten; pass ., to grow fat. Metaph ., to make dull or stupid (τ . ψυχάς , Rut.); pass ., to wax gross: ἡ καρδία„ Mat_13:15 , Act_28:27 ( LXX ).†
Moulton & Milligan — Vocabulary of the Greek NT
παχύνω [page 500]
thicken, fatten, which is used metaphorically in Mat_13:15 , Act_28:27 , occurs in a medical prescription, unfortunately very mutilated, P Tebt II. 273 .33 (ii/iii A.D.) πρὸς πεπα̣χυ [σμέν ]α̣[. .] . [. The subst. παχύτης is found in Aristeas 93 and πάχος bis in ib. 71, and its plur. in PSI VI. 601 .5 (iii/B.C.) τοῖς μεγέθεσι καὶ τοῖς πάχεσιν . For the corr. adj. see P Oxy VI. 921 .19 (iii/A.D.) σινδόνιον παχὺ ᾱ , I thick cambric, PSI IV. 364 .5 (B.C. 251 0) παχύτερον (ἱμάτιον ), and P Petr II. 4(11) .6 (B.C. 255 4) ξύλα . . . εὐμηκέστατα καὶ παχύτατα , beams as long and thick as possible.
Liddell-Scott — Intermediate Greek Lexicon
παχύνω πα^χύ_νω, [Etym: παχύς] "to thicken, fatten", Plat. , Xen. :—Pass. "to grow fat", Ar. : "to become thick", of the skull, Hdt. metaph. "to increase":—Pass., ὄλβος ἄγαν παχυνθείς Aesch. metaph. also "to make gross or stupid":—Pass., NTest.
STEPBible — Tyndale Abridged Greek Lexicon
παχύνω
(παχύς, thick) [in LXX: Deu.32:15, Isa.6:10 (שָׁמֵן), al. ;]
to thicken, fatten; pass., to grow fat. Metaphorical, to make dull or stupid (τ. ψυχάς, Rut.); pass., to wax gross: ἡ καρδία„ Mat.13:15, Act.28:27" (LXX) .†
(AS)