Luke 12:51

Δοκεῖτε ὅτι εἰρήνην παρεγενόμην δοῦναι ἐν τῇ γῇ; Οὐχί, λέγω ὑμῖν, ἀλλ᾽ ἢ διαμερισμόν.

RBT Greek Interlinear:

Strongs 1380; Dokeite; Δοκεῖτε; Think you; V-PIA-2P

Strongs 3754; hoti; ὅτι; that; Conj

Strongs 1515; eirēnēn; εἰρήνην; peace; N-AFS

Strongs 3854; paregenomēn; παρεγενόμην; I arrived; V-AIM-1S

Strongs 1325; dounai; δοῦναι; to give; V-ANA

Strongs 1722; en; ἐν; within; Prep

Strongs 3588; tē; τῇ; the; Art-DFS

Strongs 1093; gē; γῇ; earth; N-DFS

Strongs 3780; ouchi; οὐχί; No; Adv

Strongs 3004; legō; λέγω; I am saying; V-PIA-1S

Strongs 4771; hymin; ὑμῖν; to yourselves; PPro-D2P

Strongs 235; all’; ἀλλ’; but; Conj

Strongs 2228; ē; ἢ; or; Conj

Strongs 1267; diamerismon; διαμερισμόν; division; N-AMS

RBT Hebrew Literal:

διαμερισμός - An apportioning, Dividing Up

Do you think that I have become near to give peace within the Earth? No! I am saying to yourselves rather a dividing up!⁴⁹

Julia Smith Literal 1876 Translation:
Think ye that I came to give peace in the earth? Nay, I say to you; but rather division:

LITV Translation:
Do you think that I came to give peace in the earth? No, I say to you, but rather division.

ESV Translation:
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Footnotes

49

The noun διαμερισμός, derived from the verb διαμερίζω (“to divide, distribute”), denotes both the act of apportioning (e.g., in territorial or cultic contexts such as LXX Ezek. 48:19; Jos. Ant. 10.11.7). The word was used of the soldiers dividing up the garments.

διαμερισμός does not specifically mean "dividing in two." While it does refer to the act of dividing or partitioning, it more generally implies a division into parts, not necessarily two equal parts.

If you want a Greek word that specifically refers to dividing into two parts, you would use the verb χωρίζω (meaning "to separate" or "to divide"), especially in the context of splitting something into two distinct portions. Another possible word is διάσπαση (from διάσπασις), which can imply a splitting or cleaving into two.