Lexical Definition

‎πειθαρχέω‎ peitharchéō (pi-tharkh-eh'-o) to obey G:V
from a compound of ‎πείθω‎ and ‎ἄρχω‎

hearken, obey (magistrates).

Usage: 3 forms in 4 verses
Form Translated As     In Verse(s)
πειθαρχοῦσιν obeying Acts.5.32
πειθαρχεῖν To obey Acts.5.29
to be obedient Titus.3.1
πειθαρχήσαντάσ having been obedient Acts.27.21

Abbott-Smith

πειθαρχέω, -ῶ (< πείθομαι, ἀρχή), [in LXX: Da LXX 7:27 (שְׁמַע), Si 30:38 (33:28), I Es 8:94*;]
to obey one in authority, be obedient: Tit 3:1; c. dat., Ac 27:21; θεῷ, Ac 5:29, 32.†

Abbott-Smith References

Book Refs
Daniel 7:27
Acts 5:29 · 5:32 · 27:21
Titus 3:1

Liddell-Scott-Jones

πειθαρχέω-έω,

obey one in authority, absolutely, πειθαρχέωεῖ.., ἄπληκτος ὥσπερ ἵππος [Refs 5th c.BC+]; ὡς ἂν.. τοῖς πηδαλίοις ναῦς π. [Refs 5th c.BC+]; στρατηγοῦ [Refs 3rd c.BC+]; τινος [Refs 2nd c.BC+]:—middle, ἔθνος.. πειθαρχέωέεσθαι ἑτοῖμον [Refs 5th c.BC+]