Quick Definition
I spend, bear expense, waste
Strong's Definition
to expend, i.e. (in a good sense) to incur cost, or (in a bad one) to waste
Derivation: from G1160 (δαπάνη);
KJV Usage: be at charges, consume, spend
Thayer's Greek Lexicon
δαπανάω, δαπάνω: future δαπανήσω; 1 aorist ἐδαπάνησα; (δαπάνη); from (Herodotus and) Thucydides down; to incur expense, expend, spend: τί, Mar_5:26 (1Ma_14:32); ἐπί with the dative of person, for one, in his favor, Act_21:24; ὑπέρ τίνος, 2Co_12:15. in a bad sense, to waste, squander, consume: πάντα, Luk_15:14; ἵνα ἐν ταῖς ἡδοναῖς ὑμῶν δαπανήσητε, that ye may consume, waste what ye receive, in luxurious indulgence (ἐν marking the realm in rather than the object on): Jas_4:3. (Compare: ἐκδαπανάω, προσδαπανάω.)
Mounce Concise Greek Dictionary
δαπανάω dapanaō 5x
to expend, be at expense, Mar_5:26 ; Act_21:24 ; 2Co_12:15 ; to spend, waste, consume by extravagance, Luk_15:14 ; Jas_4:3
Abbott-Smith Greek Lexicon
** δαπανάω , -ῶ ,
[in LXX : Tob_1:7 , 1Ma_14:32 , al. ;]
1. to spend, expend. c . acc , Mar_5:26 ; seq . ἐπί , c. dat. pers ., Act_21:24 ; ὑπέρ , 2Co_12:15 .
2. to consume, squander: Luk_15:14 ; ἐν τ . ἡδσναῖς (on the constr. with ἐν , v. Hort , Mayor , in l ), Jas_4:3 ( cf. ἐκ -, προσ - δ .).†
Moulton & Milligan — Vocabulary of the Greek NT
δαπανάω [page 137]
P Giss I. 21 .9 (early ii/A.D.) διὸ δαπανᾷς ( sic leg. ) λίτραν μίαν καὶ ὁλκῆς στατῆρα , P. Oxy VIII. 1143 .5 ( c. A.D. 1) ἐδαπανή (θησαν ) εἰς τὸ ἱερὸν ἁλὸς (ἀρτάβαι ) β̄ , P Fay 125 .9 (ii/A.D.) τὸ δαπανηθ̣[ὲν ] παραδέξομαι , I will make an allowance for the expense (Edd.), P Flor III. 334 .9 (ii/A.D.) καὶ πάλι τῆι σῆι σφραγῖδι ἀσφαλῶς κλείσας σφράγισον τὸ δαπανηθὲν ἀνάλωμα εἰς τοὺς θησαυρούς , εἰς ᾗ (for ἣν ?) ὅσιόν ἐστιν . In OGIS 59 .15 ( c. B.C. 188) Ptolemy V announces a yearly grant of 111 Ptolemaic drachmae to the garrison on the island of Thera ὅπως ἔχωσιν εἴς τε τὰς θυσίας καὶ τὸ ἄλειμμα δαπανᾶν . With ἐν , as in Jas_4:3 , BGU I. 149 .5 (ii/iii A.D.) καὶ ἐν πυρῷ κατ᾽ ἔτος δαπανᾶται τὰ ὑπογεγρ (αμμένα ). Other things than money may be the subject : thus an undated ostracon in Archiv v. p. 179, no. 34 τοὺς ἥλους , οὓς ἠγόρασας , ἐπιμελῶς τήρησον , ὅπως Τύραννος ὁ κυβερνήτης μαρτυρήσῃ μοι , ὅτι διὰ αὐτοῦ ὁμοῦ ἐδαπανήθησαν .
Liddell-Scott — Intermediate Greek Lexicon
δαπανάω [Etym: δαπάνη] [Etym: some pass. tenses are also used in depon. sense, pres., imperf., aor1] "to spend", Thuc. , etc.; δαπ. εἴς τι "to spend upon" a thing, id=Thuc. , Xen. ; so also as Dep. "to spend", Hdt. ; ὅσα δεδαπάνησθε εἰς τὸν πόλεμον Dem. "to expend, consume, use up", Arist. :—metaph. of persons, ὑπὸ νόσου δαπανᾶσθαι Plut. Causal, τὴν πόλιν δαπανᾶν "to put" it "to expense", Thuc.
STEPBible — Tyndale Abridged Greek Lexicon
δαπανάω, -ῶ
[in LXX: Tob.1:7, 1Ma.14:32, al. ;]
__1. to spend, expend: with accusative, Mrk.5:26; before ἐπί, with dative of person(s), Act.21:24; ὑπέρ, 2Co.12:15.
__2. to consume, squander: Luk.15:14; ἐν τ. ἡδσναῖς (on the constr. with ἐν, see Hort, Mayor, in l.), Jas.4:3 (cf. ἐκ-, προσ- δ.).†
(AS)