Lexical Definition

‎τέλειος‎ téleios (tel'-i-os) perfect ^G:A
from ‎τέλος‎

of full age, man, perfect.

• complete (in various applications of labor, growth, mental and moral character, etc.)
• neuter (as noun, with ‎ὁ‎) completeness

Abbott-Smith

τέλειος, -α, -ον (< τέλος), [in LXX chiefly for שָׁלֵם, תָּמִים and cogn. forms ;]
having reached its end, finished, mature, complete, perfect;
1. of persons, primarily of physical development,
(a) full-grown, mature: He 5:14; ethically: Phl 3:15; opp. to νήπιος (-άζειν), I Co 2:6 14:20, Eph 4:13; τ. καὶ πεπληροφορημένοι, Col 4:12; τ. ἐν Χριστῷ, Col 1:28;
(b) complete, perfect (expressing the simple idea of complete goodness, without reference either to maturity or to the philosophical idea of a τέλος; v. Hort on Ja 1:4): Mt 5:48 19:21, Ja 1:4 3:2; of God, Mt 5:48.
2. Of things, complete, perfect: Ro 12:2; ἔργον, Ja 1:4; νόμος, ib. 25; δώρημα, ib. 17; ἀγάπη, I Jo 4:18; τὸ τ., I Co 13:10; compar., τελειοτέρα (σκηνή), He 9:11. (There is probably no reference in St. Paul's usage to the use of this term in the ancient mysteries; cf. ICC on Col 1:28; but v. also Lft., in l, and Notes, 173 f.) †
SYN.: v.s. ὁλόκληρος (and cf. Rendall, He., 158 ff.)

Abbott-Smith References

Liddell-Scott-Jones

τέλειος

and τέλεος, α, ον, in Trag., Attic dialect, and Doric dialectalso ος, ον, [τέλειος">Refs 5th c.BC+] is alone used by [Refs 8th c.BC+], neither form in [Refs 8th c.BC+]; τέλεος is alone used by [Refs 5th c.BC+] are recommended by [Refs 6th c.AD+]; τέλειος first in [Refs 2nd c.BC+], frequently in Papyri [Refs 3rd c.BC+] adverb is sometimes τέλεον[Refs 2nd c.AD+], etc., τέλειον [Refs 2nd c.AD+]: the form τέλεως, accusative τέλεων, with plural τέλεῳ, is found in [Refs 4th c.BC+]: the form τέληον in [Refs]: (τέλος):—perfect, of victims, entire, without spot or blemish, ἀρνῶν αἰγῶν τε τελείων [Refs 8th c.BC+]; βοτὸν τ. [Refs]; τὸνς ϝεξήκοντα τελέονς ὄϝινς (accusative plural) [Refs 5th c.BC+]; of sacrifices, ἱερὰ τ. perfect, of full tale or number, or performed with all rites, [Refs 8th c.BC+] is probably the surest bird of augury (compare τελήεις).

__b in Dialects, ={κύριος}, fully constituted, valid, ἐν ἀγορᾷ τελείῳ [Refs 4th c.BC+]; authoritative, final, ἁ δέ κα ϝράτρα ἁ δαμοσία τελεία εἴε ¯ δικάδο ¯ σα [Refs]; τὸ θέθμιον.. τέλεον εἶμεν [Refs 5th c.BC+]; so in Trag., τελεία ψῆφος a final decision, [Refs 5th c.BC+]
__2 of animals, full-grown, τέλεον νεαροῖς ἐπιθύσας [Refs 8th c.BC+]; ἐπ᾽ οὗ θύεται τὰ τ. τῶν προβάτων, opposed to γαλαθηνά, [Refs 5th c.BC+]; τ. ζῷον defined in [Refs 2nd c.AD+]; as substantive, τέλειον καὶ δέκα ἄρνες [Refs 3rd c.BC+]; τ. ἵππος, opposed to πῶλος, [Refs 5th c.BC+]; τ. ἅρμα a chariot drawn by horses, opposed to ἅρμα πωλικόν, [Refs 4th c.BC+]; of trees, [Refs 4th c.BC+]; εἰκὼν τελεία life-sized, [Refs 2nd c.BC+]; of a torsionengine, full-sized, opposed to to the model of one, [Refs 3rd c.BC+]: of human beings, full-grown, adult, [Refs 5th c.BC+]
__2.b married, τέλειοι οἱ γεγαμηκότες [Refs 2nd c.AD+]; Ἥρα Τελεία is so explained at Stymphalus, [Refs 3rd c.BC+]
__3 of persons, accomplished, perfect in his kind, in relation to quality, [Refs 5th c.BC+]; τ. σοφιστής [Refs 5th c.BC+]; κατὰ πάντα [Refs 5th c.BC+]; οἱ τ. δογματικοί [Refs 2nd c.AD+]; but ἡ τελεία μαῖα the trained or qualified midwife, distinguished from ἡ ἀρίστη (the trained and experienced midwife), [Refs 2nd c.AD+]
__3.b of things, φάρμακον τελεώτατον [Refs 5th c.BC+]; τ. ἀρετή, φιλία, etc., [Refs 4th c.BC+]; of a syllogism in the 1st pers. figure, the other figures being ἀτελεῖς, [Refs 2nd c.AD+] a serious, dangerous illness, [Refs 5th c.BC+]; ἀδικία τελέα, τελεωτάτη, absolute, [Refs 5th c.BC+]; συνθέσεις λευκὰς τελείας δέκα τρεῖς thirteen complete white suits, [Refs 2nd c.AD+]; τ. ἀποζυγή complete divorce, [Refs 4th c.AD+]; ὕνις τελεία, κράβακτος ξύλινος τ., etc., [Refs 3rd c.AD+]; of land, fully inundated, opposed to ἀβροχικός, [Refs 6th c.AD+], probably in [Refs 6th c.AD+]
__4 of prayers, vows, etc., fulfilled, accomplished, εὐχωλαί [Refs 5th c.BC+]; of omens or predictions, ὄψις ὀνείρου οὐ τελέη a vision which imported nothing, [Refs 5th c.BC+]
__5 of numbers, full, complete, τελέους ἑπτὰ μῆνας [Refs 5th c.BC+]; τ. ἐνιαυτός the great year, [Refs 5th c.BC+]
__5.b in Arithm., of perfectnumbers, which are equal to the sum of their divisors, as [Refs 3rd c.BC+] (3 is τ. because it has ἀρχή, μέσον, τέλος, [Refs]
__6 τ. κρατήρ, i.e. the third bowl offered to Ζεὺς Σωτήρ, [Refs 5th c.BC+]
__II of the gods, having power to fulfil prayer, all-powerful (as implied in [Refs 5th c.BC+]; of Hera ζυγία, the presiding goddess of marriage (see.[Refs 5th c.BC+]; of Apollo, [Refs 3rd c.BC+]; of the Eumenides, [Refs 4th c.BC+]: generally, θεοὶ τέλειοι τέλειαί τε [Refs 4th c.BC+]. the head or lord of the house, [Refs 4th c.BC+]
__III ={τελευταῖος}, last, [Refs 5th c.BC+]
__IV τέλειον, τό, a royal banquet, as a translated of the [Refs 5th c.BC+]
__V ἡ τελεία (i.e. στιγμή) the full point, [Refs 4th c.BC+]
__V.2 ἡ τελεία (i.e. ἀντίδοτος) the perfect antidote, effective against all poisons, Scrib. Larg.177.
__VI Τέλεος (i.e. μήν(, ὁ, name of a month at Epidaurus, [Refs]
__VII adverb τελέως finally, absolutely, with full authority, [Refs 4th c.BC+]
__VII.2 completely, absolutely, thoroughly, τ. ἐς ἀσθενὲς ἔρχεται [Refs 5th c.BC+]; τ. ἐκκλησιάσαιμεν perfectly, [Refs 5th c.BC+]; τ. μ᾽ ὑπῆλθε completely deceived me, [Refs 4th c.BC+]; τ. ἑστιᾶν perfectly, [Refs 5th c.BC+]; τ. κινήσεται absolutely, [Refs 5th c.BC+]; τ. γὰρ ἡμᾶς ἐνώχλει he was a perfect nuisance to us, [Refs 3rd c.BC+]; τ. γυμνάζειν put a person through the τέλειον γυμνάσιον, [Refs 2nd c.AD+]; μέσα τ. completely neutral, [Refs] adverb allowed by Thom.Mag.p.358 R., but τελείως is found in [LXX+5th c.BC+]
__VII.3 the neuter τέλεον is also used as adverb in later Prose, [Refs 2nd c.AD+]
__VIII comparative and superlative: [Refs 8th c.BC+] prevail, though the other forms occur in [Refs 4th c.BC+]. comparative adverb τελεώτερον [Refs 8th c.BC+]