Quick Definition
I make a public speech, address a multitude
Strong's Definition
to be a people-gatherer, i.e. to address a public assembly
Derivation: from a compound of G1218 (δῆμος) and G58 (ἀγορά);
KJV Usage: make an oration
Thayer's Greek Lexicon
δημηγορέω, δημηγόρω: (imperfect ἐδημηγορουν); (to be a δημηγόρος, from δῆμος and ἀγορεύω, to harangue the people); to address a public assembly, make a speech to the people: ἐδημηγόρει πρός αὐτούς (A. V. made an oration), Act_12:21. (Aristophanes, Xenophon, Plato, Demosthenes, others. Pro_30:31 (); 4Ma_5:15.)
Mounce Concise Greek Dictionary
δημηγορέω dēmēgoreō 1x
to address a public assembly, to deliver a public oration, Act_12:21
Abbott-Smith Greek Lexicon
δημηγορέω , -ῶ
( < δῆμος , ἀγορεύω , to speak in the assembly ),
[in LXX : Pro_30:31 , 4Ma_5:15 * ;]
to deliver an oration: Act_12:21 .†
Liddell-Scott — Intermediate Greek Lexicon
δημηγορέω [Etym: δημηγόρος] "to speak in the assembly", Lat. concionari, Ar. , etc.: Pass., τὰ δεδημηγορημένα "public speeches", Dem. "to make popular speeches, to speak rhetorically, use clap-trap", Plat. , etc.
STEPBible — Tyndale Abridged Greek Lexicon
δημηγορέω, -ῶ
(δῆμος, ἀγορεύω, to speak in the assembly), [in LXX: Pro.24:66 (30:31), 4Ma.5:15 * ;]
to deliver an oration: Act.12:21.†
(AS)