Lexical Definition

‎ἀντέπω‎ antépō (an-tep'-o) to contradict G:V
from ‎ἀντί‎ and ‎ἔπω‎

gainsay, say against.

Usage: 8 forms in 13 verses
Form Translated As     In Verse(s)
ἀντειπεῖν to contradict Acts.4.14
to reply to Luke.21.15
αντερούμεν shall we contradict LXX.Gen.44.16
αντερείν to contradict LXX.Job.20.2
αντειπών contradicting LXX.Job.23.13
αντειπείν contradicted LXX.Job.32.1
to contradict LXX.Gen.24.50LXX.Esth.8.8
αντείπη contradict LXX.Job.9.3LXX.Isa.10.14
αντείπε she contradicted LXX.Esth.1.17
she did contradict LXX.Esth.1.17
αντείπαν contradicted LXX.Josh.17.14

Abbott-Smith

ἀντ-ε͂ιπον (ἀντί, εἶπον), [in LXX for שׁוּב hi., דבר pi., ענה, etc.;]
2 aor., without present in use, to speak against, gainsay: Lk 21:15, Ac 4:14.†

Abbott-Smith References

Book Refs
Luke 21:15
Acts 4:14

Liddell-Scott-Jones

ἀντεῖπον,

aorist 2 without any present (compare ἀντερῶ, ἀντιλέγω, ἀνταγορεύω), speak against or in answer, gainsay, with dative, [Refs 5th c.BC+]; . πρός τινα or τι, [Refs 5th c.BC+]; oppose, [Refs 5th c.BC+]; . ὑπέρ τινος speak in one's defence, [Refs 5th c.BC+] utter a word of contradiction, [Refs 5th c.BC+]; δύο λόγω περὶ τῶν αὐτῶν ἀντειπεῖν speak on both sides of a question, [Refs 5th c.BC+]

__2 κακῶς . τινά malign him in turn, [Refs 5th c.BC+]