Lexical Definition

‎δέρω‎ dérō (der'-o) to beat up ^G:V
a primary verb

beat, smite.

• properly, to flay, i.e. (by implication) to scourge, or (by analogy) to thrash

Abbott-Smith

δέρω [in LXX: Le 1:6, II Ch 29:34 35:11 (פָּשַׁט hi.)* ;]
1. to skin, flay.
2. (of. Eng. slang, hide) to beat, thrash: c. acc, Mt 21:35, Mk 12:3, 5, Lk 20:10, 11 22:63, Jo 18:23, Ac 5:40 16:37 22:19; ὡς ἀέρα δέρων, I Co 9:26; εἰς πρόσωπου δ., II Co 11:20. Pass., Mk 13:9, Lk 12:47, 48 (δαρήσεται πολλάς, ὀλίγας, sc. πληγάς).†

Abbott-Smith References

Liddell-Scott-Jones

δέρω

[Refs 5th c.BC+]:—also δείρω [Refs 5th c.BC+]: imperfect ἔδερον [Refs 8th c.BC+], Epic dialect δέρον [Refs 8th c.BC+]: future δερῶ [Refs 5th c.BC+]: aorist ἔδειρα [Refs 8th c.BC+] —middle, see. {ἀναδέρω}:—passive, future δᾰρήσομαι [NT+2nd c.AD+]aorist ἐδάρην [ᾰ] [Refs 5th c.BC+]; participle δαρθείς [Refs 4th c.BC+]perfect δέδαρμαι (see. below):— skin, flay, of animals, δ. βοῦς [Refs 8th c.BC+] 'flog a dead horse', [Refs 5th c.BC+]; ἀσκὸς δεδάρθαι to have one's skin flayed off, [Refs 6th c.BC+]; δερῶ σε θύλακον κλοπῆς I will make a thief's purse of your skin, [Refs 5th c.BC+] 'first catch your hare, then cook it', [Refs]; ἀέρα δέρειν 'plough the sands', [Refs]

__2 Anatomy texts, separate by avulsion, [Refs 3rd c.BC+]
__II colloquially, cudgel, thrash, δέδοκταί μοι δέρεσθαι καὶ δέρειν δι᾽ ἡμέρας [Refs 5th c.BC+] 'spare the rod and spoil the child', [Refs 4th c.BC+]: metaphorically, εἰς πρόσωπόν τινα δ. [NT]. (Cf. Lithuanian derù 'flay', Sanskrit dṛṇā´ti 'split'.)

_{LSJ Scripture Refs: Mark.13.9 ☩ 2Cor.11.20}