Quick Definition
δήποτε Disj.prt. even at that time, whenever
Strong's Definition
a particle of generalization; indeed, at any time
Derivation: from G1211 (δή) and G4218 (ποτέ);
KJV Usage: (what-)soever
Thayer's Greek Lexicon
δή-ποτε (fr. δή and ποτέ), adv., now at length (jam aliquando) ; at any time ; at last, ete., just exactly ; Thence it generalizes a relative, like the Lat. cumque ; see Lob. Ἵ διά ad Phryn. p. 373]: ᾧ δήποτε νοσήματι, with whatsoever disease, Jn. v. 4 (RG, but L οἱῳδηποτοῦν).
Mounce Concise Greek Dictionary
Abbott-Smith Greek Lexicon
δή-ποτε indef. adv. (also written δή ποτε), with generalizing force; absol., sometime.
With adv. or relat., -soever: ᾦ δ., Jo 5:4 (L, οἱῳδηποτοῦν).†
Moulton & Milligan — Vocabulary of the Greek NT
δήποτε. For δήποτε, as in [Jn] 54 (whether we read οἵῳ δηποτοῦν with A or ᾧ δήποτε with @) cf. P Lond 904” (a.p. 104) (=TIII. p. 125) καθ᾽ ἥ[ντινα] δήποτε αἰτ[ίαν, P Tebt II. 38144 (A.D. 123) καθ᾽ ὃν δήποτε οὖν τρόπον. See also the decree of Ptolemy Philometor found at Delos, published in Archiv vi. p. 9 —* κ]ατὰ πρεσβείαν ἢ kar ἄλλην δηποτοῦν χρεί[αν] τιμῶν Kal πολυωρῶν, and Aristeas 164 ὅ τι ἂν ϑηποτοῦν ἐπιβόληται κακοποιεῖν.
Liddell-Scott-Jones — Greek-English Lexicon
δήποτε (dēpote) — whatever. δήποτε, indefinite adverb (better written δή ποτε), Ionic dialect δήκοτε, Doric dialect δήποκα, at some time, once upon a time, [Refs 8th c.BC+]; at length, [Refs 4th c.BC+]
2. εἰ δή ποτε if ever, [Refs 8th c.BC+]
3. with interrogative, τί δή ποτ; what in the world? what or why now? καίτοι τί δή ποτ; [Refs 4th c.BC+]; πόσοι δή ποτ᾽ εἰσὶν οἱ..; how many do you suppose? [Refs]
4. especially frequently with relatives, ὅτι δή κοτε πράξαντα [Refs 5th c.BC+]; ὅτι δή ποτε whatever it may be, 'so-and-so', [Refs 4th c.BC+]; οἷος δή ποτ᾽ οὖν variant in [Refs 1st c.AD+]; also δή ποτ᾽ οὖν without relative, κατὰ πρεσβείαν ἢ κατ᾽ ἄλλην δ. χρείαν [Refs]