Lexical Definition

‎τηλαυγῶς‎ tēlaugōs (tay-low-goce') clearly ^G:ADV
adverb from a compound of a derivative of ‎τέλος‎ and ‎αὐγή‎

clearly.

• in a far-shining manner, i.e. plainly

Abbott-Smith

τηλαυγῶς adv. (< τῆλε, afar, + αὐγή, radiance), poët. and in late prose,
at a distance clearly: Mk 8:25 (WH, mg., δηλαυγῶς).†

Abbott-Smith References

Liddell-Scott-Jones

Included with: τηλαυγῶς-ής, ές,

(τῆλε, αὐγή) far-shining, far-beaming, πρόσωπον, of the sun, [Refs]; φάος, φέγγος, [Refs 5th c.BC+]; ἀκτίς, ἀκτίνων σέλας, [Refs 5th c.BC+]; πρόσωπον θέμεν τ. to make it beam from afar, [Refs] luminous meaning, [Refs 1st c.BC+]

__II of distant objects, far-seen, conspicuous, σκοπιή [Refs 6th c.BC+]; of leprosy, [LXX]
__III far-seeing, αἴσθησις, ψυχή, [Refs 5th c.BC+] adverb -γῶς, τηλαυγῶςέστερον ὁρᾶν to see more clearly, [NT+1st c.BC+]

_{LSJ Scripture Refs: LXX.Lev.13.4 ☩ Mark.8.25}