Quick Definition
στήκω v. I stand fast, persevere
Strong's Definition
from the perfect tense of 2476; to be stationary, i.e. (figuratively) to persevere
KJV Usage: stand (fast)
UBS Dictionary of the Greek New Testament
verb | ἵστημι
17.1 · Stances and Events Related to Stances · Stand
to stand to be in a standing position
13.30 · Be, Become, Exist, Happen · State
to continue to be, to stand to continue in a state, with a possible implication of acceptability For a discussion of στήκω as part of an idiom in ROM 14:4, see 87.56.
ROM 14:4 · 1CO 16:13 · GAL 5:1 · PHP 1:27 · PHP 4:1 · 1TH 3:8 · 2TH 2:15
87.56 · Status · High Status or Rank [including persons of high status]
Collocation: τῷ ἰδίῳ κυρίῳ στήκει ἢ πίπτει
honor or disgrace depends on the person whom one serves (an idiom, literally: to his own master he stands or falls, probably a familiar adage) whether one maintains one’s status or relationship to a master depends on the masters judgment or evaluation
1 ἵσταμαι[a] and στήκω[a] would seem to differ only in terms of linguistic level or register, since στήκω was a new formation and probably somewhat more colloquial.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
στήκω; (an inferior Grk. word, derived fr. ἕστηκα, pf. of ἵστημε; see B. 48 (41); [W. 24, 26 (25); WH. App. p- 169; Veitch s.v. ἑστήκω; Mullach 8. ν. στέκω (p. 299)]); to stand: Mk. [iii. 31 T Tr WH]; xi. 25 [(ef. ὅταν c. B.)]; Jn. i. 26 Linrg. T Trtxt. WH; [Rev. xii. 4 WH (but see below)]; with an emphasis, to stand Jjirm; trop. to persist, persevere, [A.V. sland fast]: absol. to persevere in godliness and rectitude, 2 Th. ii. 15; ἐν κυρίῳ, in one’s fellowship with the Lord, Phil. iv. 1; 1 Th. iii. 8 [(cf. ἐάν, 1. 2 b.)]; ἐν τῇ πίστει, 1 Co. xvi. 18 ; ἐν ἑνὶ πνεύματι, Phil. i. 27; to keep one’s standing (opp. to ζυγῷ ἐνέχομαι), τῇ ἐλευθερίᾳ, maintain your allegiance to freedom (cf. W. § 31, 1 k.; B. $133, 12; but L T Tr WHI take or. here absol.; οἵ. Bp. Lghtft. ad loc.], Gal. v. 1; lo stand erect, trop. not to sin (opp. to πίπτειν i. ἢ. to sin), τῷ κυρίῳ, dat. commodi [W. τι. 5.7, Ro. xiv. 4. [In Jn. viii. 44 (ἐν τῇ ἀληθείᾳ οὐκ(χ) extnxev) WIT read the impf. ἔστηκεν (where others adopt ἕστηκεν fr. ἵστημι), owing to the preceding οὐκ (T WH after codd. 8 B
Mounce Concise Greek Dictionary
στήκω stēkō 9x
to stand, Mk. 3:31; 11:25; met. to stand when under judgment, to be approved, Rom. 14:4; to stand firm, be constant, persevere, 1 Cor. 16:13; Gal. 5:1; Phil. 1:27; 4:1; 1 Thess. 3:8; 2 Thess. 2:15*
Abbott-Smith Greek Lexicon
† στήκω late Pres., formed from perf., ἕστηκα (v. B1., § 17; WH, App., 169; Kennedy, Sources, 158; M, Pr., 238; MM, xxiii),
[in LXX: Ex 14:13 A, Jg 16:26 B, III Ki 8:11 B * ;]
= ἵστημι, to stand: Mk 3:31 11:25, Jo 1:26, Re 12:4 (ἕστηκεν T). Metaph., to stand firm, stand fast: absol., Ga 5:1 (but v. Field, Notes, 189 f.), II Th 2:15; seq. ἐν, Jo 8:44 (ἕστηκεν, T, R, mg.), I Co 16:13, Phl 1:27 4:1; c. dat., Ro 14:4.†
Moulton & Milligan — Vocabulary of the Greek NT
στήκω, “*stand,” a new present (MGr στέκω) from the perf. ἕστηκα, and retaining the same meaning: cf. Blass— Debrunner Gr. § 73, Psaltes Gr. p. 245. The idea of emphasis usually associated with the verb can hardly be pressed in view of the late Greek love for such forms: cf. Kazbel 970 (iii/A.D. 2) where it is interchanged with ἔστανεν (from the late σταίνω)--ἽΟ]ς ποτε γυμνασίῳ Φιλήμονος ἔστανεν “Eppiy νῦν σ[τ]ήκω κἀ[ι]γὼ Τελέσφορος....
Liddell-Scott-Jones — Greek-English Lexicon
στήκω (stēkō) — to stand. στήκω, late present formed from ἕστηκα (perfect of ἵστημι), stand, [LXX+NT]; participle, παρὼν καὶ στήγων (sic) [Refs 4th c.AD+]; so ἑστήκω, [Refs 3rd c.BC+].