Lexical Definition

‎ἀπάρτι‎ apárti (ap-ar'-tee) henceforth ^G:ADV
from ‎ἀπό‎ and ‎ἄρτι‎

from henceforth.

• from now, i.e. henceforth (already)

Abbott-Smith

* ἀπάρτι (WH, ἀπ᾽ ἄρτι; cl., ἀπαρτί, v. MM, VGT, s.v.); adv., [not in LXX, where מֵעַתָּה is rendered by ἀπὸ τοῦ νῦν;]
from now, henceforth: Jo 13:19 14:7, Re 14:13.†

Abbott-Smith References

Liddell-Scott-Jones

combination of: ἄρτι (ἀπό+ἄρτι)

ἀπαρτί [ῐ],

adverb completely, and, of numbers, exactly, just, ἡμέραι ἀ. ἐνενήκοντα[Refs 5th c.BC+]

__II just the contrary, τί.. ἀποτίνειν τῷδ᾽ ἀξιοῖ;—ἀ. δή που προσλαβεῖν παρὰ τοῦδ᾽ ἐγὼ μᾶλλον on the contrary, I expect to receive.., [Refs 5th c.BC+]
__III ἀπάρτι, properly ἀπ᾽ ἄρτι, of Time, from now, henceforth, [NT]
__III.2 just now, even now, [NT] (This is not an Attic dialect use, hence [Refs 5th c.BC+] must be incorrectly interpretation by [Refs]

_{LSJ Scripture Refs: Matt.23.39 ☩ John.13.19}