Lexical Definition

‎ὄρθρος‎ órthros (or'-thros) dawn G:N-M
from the same as ‎ὄρος‎

early in the morning.

Usage: 6 forms in 30 verses
Form Translated As     In Verse(s)
ὄρθρου Early in the morning John.8.2
dawn Luke.24.1
ὄρθρον dawn Acts.5.21
όρθρου and at dawn LXX.Esth.5.14
at dawn LXX.Josh.6.15LXX.Ps.57.8LXX.Ps.108.2LXX.Jer.7.25LXX.Jer.25.4LXX.Jer.26.5LXX.Jer.32.33
dawn LXX.Neh.4.21LXX.Prov.7.18
early LXX.Jer.35.14LXX.Jer.44.4LXX.Hos.11.1
όρθροσ at dawn LXX.Judg.16.2
dawn LXX.Gen.19.15LXX.Gen.32.26LXX.1Sam.9.26LXX.Song.6.10LXX.Joel.2.2
will it be dawn LXX.Prov.23.35
όρθρον dawn LXX.Exod.19.16LXX.Judg.19.25LXX.Ps.119.148LXX.Ps.139.9LXX.Hos.6.3LXX.Amos.4.13
όρθροισ dawns LXX.Ps.63.6

Abbott-Smith

ὄρθρος, -ου, ὁ, [in LXX for שַׁחַר, בֹּקֶר, etc.;]
daybreak, dawn: ὄρθρου βαθέως (M, Pr., 73), at early dawn, Lk 24:1; ὄρθρου, [2](/btb/interlinear/43%20-%20John/8/John.8.2.html)]; ὑπὸ τὸν ὄ., Ac 5:21 (cf. MM, xviii).†

Abbott-Smith References

Book Refs
Luke 24:1
John 8:2
Acts 5:21

Liddell-Scott-Jones

ὄρθρος, ,

the time just before or about daybreak, dawn, cock-crow (ἀπ᾽ ὄρθρου μέχρι περ ἂν ἥλιος ἀνάσχῃ [Refs 5th c.BC+]at dawn, [Refs 8th c.BC+]; πρὸς ὄρθρον towards dawn, [Refs 5th c.BC+]; τὸν ., absolutely, in the morning, [Refs 5th c.BC+]; δι᾽ ὄρθρων each morning early, [Refs 5th c.BC+]; . βαθύς dim morning twilight, ἀλλὰ νῦν . β. [NT+5th c.BC+]

__II Ὄρθρος, , a mythical dog, son of Typhaon and Echidna, that kept the herds of Geryoneus on the island Erytheia, and was there killed by Heracles, [Refs 8th c.BC+]

LSJ Scripture Refs: Luke.24.1