Lexical Definition

‎ἔσχατος‎ éschatos (es'-khat-os) last/least ^G:A
a superlative probably from ‎ἔχω‎ (in the sense of contiguity)

ends of, last, latter end, lowest, uttermost.

• farthest, final (of place or time)

Abbott-Smith

ἔσχατος, -η, -ον [in LXX chiefly for אַחֲרִית אַחֲרוֹן ;]
last, utmost, extreme;
(a) of place: of the lowest or least honoured place, Lk 14:9, 10; τ. ἔσχατον, c. gen. part., Ac 1:8 13:47;
(b) of time: Mt 20:12, 14, Mk 12:6, 22, opp. to πρῶτος, Mt 20:8, I Co 15:45, Re 2:19, al.; τὰ ἔ. καὶ τ. πρῶτα, Mt 12:45, Lk 11:26, II Pe 2:20; of the Eternal, ὁ πρῶτος καὶ ὁ ἔ., Re 1:17 2:8 22:13; in phrases relating to the Messianic age and the consummation of the Kingdom of God: ἐπ’ ἐσχάτου (-ων) τ. ἡμερῶν, He 1:2, II Pe 3:3; τ. χρόνων, I Pe 1:20; ἔ. ὥρα, I Jo 2:18; ἐπ’ ἐ. χόνου, Ju 18; ἐν ἐ. ἡμέραις, Ac 2:17, Ja 5:3, II Ti 3:1; neut., ἔσχατον, as adv., Mk 12:22, I Co 15:8;
(c) of rank: Mk 9:35, I Co 4:9

Abbott-Smith References

Liddell-Scott-Jones

ἔσχατος, η, ον,

also ος, ον [Refs 4th c.BC+(probably from ἐκ, ἐξ, perhaps eĝhzκατος (compare ἐχθός) like{ἔγ-κατα}):

__I of Space, as always in [Refs 8th c.BC+], farthest, uttermost, extreme, θάλαμος ἔ. the hindmost chamber, [Refs 8th c.BC+]at the end of the lines, [Refs 8th c.BC+]; ἔσχατοι ἀνδρῶν, of the Aethiopians, [Refs 8th c.BC+]; τάξις ἐ. the farthest part of the army, [Refs 8th c.BC+]; ἐξ ἐσχάτων ἐς ἔσχατα ἀπικέσθαι from end to end, [Refs 5th c.BC+]:—in various senses, uppermost, ἐ. πυρά [Refs 5th c.BC+]; lowest, deepest, ἀΐδας [Refs 3rd c.BC+]; innermost, σάρκες [Refs 5th c.BC+]; last, hindmost, ἤλαυνε δ᾽ ἔ. [Refs]; ἐπ᾽ ἐσχάτῳ at the close of a document, [Refs 2nd c.BC+]
__I.2 of Degree, uttermost, highest, τὸ ἔ. κορυφοῦται βασιλεῦσι [Refs 5th c.BC+]; of misfortunes, sufferings, etc., utmost, last, worst, πόνος, ἀδικία, κίνδυνοι, [Refs 5th c.BC+]; δῆμος ἔ. extreme democracy, [Refs 4th c.BC+]
__I.2.b substantive, τὸ ἔ., τὰ ἔ., the utmost, ἐς τὸ ἔ. κακοῦ ἀπιγμένοι [Refs 5th c.BC+]; ζημιοῦσθαι πᾶσι τοῖς ἐ., Latin extremis suppliciis, [Refs 5th c.BC+]; ἔσχατ᾽ ἐσχάτων κακά worst of possible evils, [Refs 5th c.BC+]: comparative οὔτε γὰρ τοῦ ἐσχάτου -ώτερον εἴη ἄν τι [Refs 4th c.BC+] falsa lectio in [Refs 5th c.BC+]
__I.3 of Persons, lowest, meanest, [Refs 1st c.BC+] i.e. the meanest of mankind,[Refs 5th c.BC+] it seems to mean the remotest of mankind, compare πρὸς ἐσχάτην Μυσῶν variant in [Refs 1st c.AD+]
__I.4 of Time, last, ἐς τὸ ἔ. to the end, [Refs 5th c.BC+]; ἔ. πλόος, ναυτιλίαι, the end of it, [Refs 5th c.BC+]; ἐσχάτας ὑπὲρ ῥίζας over the last scion of the race, [Refs 5th c.BC+]; ἔ. Ἑλλήνων, Ῥωμαίων, [Refs 1st c.AD+] as adverb, for the last time, [Refs 5th c.BC+]; finally, best of all, [NT]; at the latest, ἔ. ἐν τρισὶ μησίν [Refs 4th c.BC+]; εἰς τὴν ἐσχάτην at the last, [LXX]; ἐπ᾽ ἐσχάτῳ[LXX] substantive ἐσχάτη, ἡ, end, οὐχ ἕξεις ἐ. καλήν [Refs 2nd c.AD+]
__I.5 in the Logic of [Refs 4th c.BC+] are the last or lowest species, [Refs]individuals, [Refs]
__I.5.b ὁ ἔ. ὅρος the minor term of a syllogism, [Refs]
__I.5.c last step in geometrical analysis or ultimate condition of action, τὸ ἔ. ἀρχὴ τῆς πράξεως [Refs]
__II adverb -τως to the uttermost, exceedingly, πῦρ ἐ. καίει [Refs 5th c.BC+]
__II.b -τως διακεῖσθαι to be at the last extremity, [NT+2nd c.BC+]
__II.2 so ἐς τὸ ἔ.,=ἐσχάτως, [Refs 5th c.BC+]finally, in the end, [Refs 5th c.BC+]; but, τὸ ἔ. what is worst of all, [Refs]

_{LSJ Scripture Refs: 1Cor.15.8 ☩ LXX.Eccl.1.11 ☩ LXX.2Kgs.24.25 ☩ Mark.5.23}