Lexical Definition

‎δοκέω‎ dokéō (dok-eh'-o) to think ^G:V
a prolonged form of a primary verb, (used only in an alternate in certain tenses

be accounted, (of own) please(-ure), be of reputation, seem (good), suppose, think, trow.

• compare the base of ‎δεικνύω‎) of the same meaning
• to think
• by implication, to seem (truthfully or uncertainly)

Abbott-Smith

δοκέω, -ῶ (< δόκος, opinion, < δέκομαι, Ion, form of δέχ-), [in LXX for טוֹב, נָדַב, etc. ;]
1. to be of opinion, suppose: Mt 24:44, Lk 12:40, He 10:29; c. inf., Mt 3:9, Lk 8:18 24:37, Jo 5:39 16:2, Ac 12:9 27:13, I Co 3:18 7:40 8:2 10:12 14:37, Ga 6:3, Phl 3:4, Ja 1:26; c. acc et inf., I Co 12:23, II Co 11:16; seq. ὅτι, Mt 6:7 26:53, Mk 6:49, Lk 12:51 13:2, 4 19:11, Jo 5:45 11:13, 31 13:29 20:15, I Co 4:9, II Co 12:19, Ja 4:5.
2. to seem, be reputed: Ac 25:27; c. inf., Mk 10:42, Lk 10:36 22:24, Ac 17:13 26:9, I Co 11:16 12:22, II Co 10:9, Ga 2:6, 9, He 4:1 12:11; οἱ δοκοῦντες, those of repute, Ga 2:2. Impers., it seems, c. dat. pers.;
(a) to think: Mt 17:25 18:12 21:28 22:17, 42 26:66, Jo 11:56, He 12:10;
(b) to please, seem good to: c. inf., Lk 1:3, Ac 15:22, 25, 23, 34.†
SYN. (δοκέω 1.): ἡγέομαι 2, νομίζω2, οἴομαι; ἡ. and ν. properly express belief resting on external proof, ἡ. denoting the more careful judgment; δ. and οἴ. imply a subjective judgment which in the case of οἴ. is based on feeling, in δ. on thought (v. Schmidt, c. 17)
(δοκέω 2.): φαίνομαι; φ., from the standpoint of the object, "expresses how a matter phenomenally shows and presents itself"; δ., from the standpoint of the observer, expresses one's subjective judgment about a matter (v. Tr., Syn., § lxxx; Cremer, 204).

Abbott-Smith References

Liddell-Scott-Jones

δοκέω

[Refs 8th c.BC+]imperfect ἐδόκουν, Epic dialect δοκέεσκον [Refs 6th c.AD+]: —middle, δοκέοντο [Refs 3rd c.AD+]: participle δοκεύμενος[Refs]: the future and other tenses are twofold:

__1 future δόξω and aorist 1 ἔδοξα [Refs 5th c.BC+]perfect δέδοχα inferred from pluperfect ἐδεδόχεσαν [Refs 2nd c.AD+]:—passive, aorist ἐδόχθην [Refs 5th c.BC+]: perfect δέδογμαι [Refs 5th c.BC+]: pluperfect ἐδέδοκτο [Refs]
__2 regular forms (chiefly Trag., Comedy texts, and late Prose), future δοκήσω [Refs 5th c.BC+]; Doric dialect δοκησῶ or -ᾱσῶ[Refs 3rd c.BC+]aorist ἐδόκησα, Epic dialect δόκ- [Refs 8th c.BC+]: perfect δεδόκηκα [Refs 4th c.BC+]:— passive, aorist ἐδοκήθην [Refs 5th c.BC+]: perfect δεδόκημαι [Refs 5th c.BC+].; but δεδοκημένος (which see) belongs to δέχομαι.
__I expect (Iterat. of δέκομαι,[Refs]: hence, think, suppose, imagine, (opposed to φρονέω, [Refs 5th c.BC+]
__I.1 with accusative et infinitive, δοκέω νικησέμεν Ἕκτορα [δοκέω πείθεσθαι 5th c.BC: Herodotus Historicus 1.8, compare 11, 27, +others, 5th c.BC: Antipho Orator 2.4.5, etc.: rarely with ">Refs 8th c.BC+]infinitive omitted, δοκῶ.. οὐδὲν ῥῆμα.. κακὸν [εἶναι] [Refs 5th c.BC+]; τούτους τι δοκεῖτε [εἶναι] [Refs 5th c.BC+]; frequently in relating a dream or vision, τεκεῖν δράκοντ᾽ ἔδοξεν she thought a serpent produced young, [Refs 4th c.BC+]; ἐδόκουν αἰετὸν.. φέρειν methought an eagle was carrying, [Refs 5th c.BC+]infinitive only, ἔδοξ᾽ ἰδεῖν methought I saw,[Refs 5th c.BC+] (sometimes also, as in signification [Refs 4th c.BC+]
__I.1.b think to do, purpose, ὅταν δ᾽ ἀείδειν.. δοκῶ [Refs 4th c.BC+]
__I.2 absolutely, have or form an opinion, περί τινος [Refs 5th c.BC+]; mostly in parenthetic phrases, ὡς δοκῶ [Refs 5th c.BC+]; δοκῶ alone, [Refs 5th c.BC+]; πῶς δοκεῖ; to call attention to something remarked, τοῦτον, πῶς δοκεῖ; καθύβρισεν [Refs 5th c.BC+]
__I.3 δοκῶ μοι I seem to myself, methinks, with infinitive, ἐγώ μοι δοκέω κατανοέειν τοῦτο [Refs 5th c.BC+]; οὔ μοι δοκῶ I think not.., [Refs 5th c.BC+]; δοκῶ μοι parenthetic, [Refs]
__I.3.b δοκῶ μοι I am determined, resolved, with infinitive present, [Refs 5th c.BC+]: with infinitive future, [Refs 4th c.BC+]: with infinitive aorist, uncertain in [Refs 5th c.BC+]: rarely without μοι, think fit, σὺ δ᾽ αὐτὸς ἤδη γνῶθι τίνα πέμπειν δοκεῖς [Refs 4th c.BC+]
__I.4 seem, pretend, with infinitive (with or without negative), ὁρέων μὲν οὐδέν, δοκέων δὲ [ὁρᾶν] uncertain reading in [Refs 7th c.BC+]
__I.5 passive, to be considered, δοκεῖσθαι οὕτω [Refs 5th c.BC+]; τὰ νῦν δοκούμενα περί τινος the current opinions, [Refs]
__I.6 middle, [Refs 3rd c.AD+]
__II of an Object, seem, with dative person et infinitive present, δοκέεις δέ μοι οὐκ ἀπινύσσειν [Refs 8th c.BC+]; δόκησε δ᾽ ἄρα σφίσι θυμὸς ὣς ἔμεν ὡς εἰ.. their heart seemed just as if.., felt as though.., [Refs]infinitive future, seem likely, δοκέει δέ μοι ὧδε λώϊον ἔσσεσθαι [Refs 8th c.BC+]: with infinitive aorist (never in [Refs 8th c.BC+]; seem or be thought to have done, especially of suspected persons, [Refs 5th c.BC+]; to be convicted, ἂν ἁλῷ καὶ δοκῇ τοὔργον εἰργάσθαι [Refs 4th c.BC+]
__II.2 absolutely, seem, as opposed to to reality, τὸ δοκεῖν καὶ τὰν ἀλάθειαν βιᾶται [Refs 5th c.BC+]
__II.3 seem good, be resolved on, εἰ δοκεῖ σοι ταῦτα[Refs]
__II.4 frequently impersonal, δοκεῖ μοι it seems to me, methinks, ὥς μοι δοκεῖ εἶναι ἄριστα [Refs 8th c.BC+]; ὡς ἐμοὶ δοκεῖ as I think, [Refs 4th c.BC+]; τὸ σοὶ δοκοῦν your opinion, [Refs 5th c.BC+]infinitive in parenthesis clause, ὡς ἐμοὶ δοκέειν to my thinking, [Refs 5th c.BC+]; without μοι, [Refs 5th c.BC+]
__II.4.b it seems good to me, it is my pleasure, δοκεῖ ἡμῖν χρῆσθαι [Refs 5th c.BC+]: frequently of a public resolution, τοῖσι Ἕλλησι δόξαι.. ἀπαιτέειν [Refs 5th c.BC+]; especially in decrees and the like, ἔδοξε τῇ βουλῇ, τῷ δήμῳ, [Refs 5th c.BC+]:—passive, δέδοκται [Refs 5th c.BC+] when it was decreed or resolved, δόξαν αὐτοῖς ὥστε διαναυμαχεῖν [Refs 5th c.BC+]; δόξαν δέ σφι (i.e. λιπέσθαι) [Refs 5th c.BC+]; ἰδίᾳ δοκῆσάν σοι τόδ᾽..; [Refs 5th c.BC+]
__II.5 to be reputed, with infinitive, [Refs 5th c.BC+]; δοκοῦντες εἶναί τι men who are held to be something, men of repute, [Refs 5th c.BC+]; τὰ δοκοῦντα, opposed to τὰ μηδὲν ὄντα, [Refs 5th c.BC+]; to be an established, current opinion, [Refs 4th c.BC+] — passive, οἱ δεδογμένοι ἀνδροφόνοι those who have been found guilty of homicide, [δοκέω are sometimes contrasted, τὰ ἀεὶ δοκοῦντα.. τῷ δοκοῦντι εἶναι ἀληθῆ">Refs 4th c.BC+] that which seems true is true to him who thinks it, [Refs 5th c.BC+]