ῥαβδοῦχοςrhabdoûchos

one who carries a rod or staff of office

Greek (New Testament) · G4465

Meanings

(a) an umpire or judge

(b) in late writers, a Roman lictor: Acts 16:35, Acts 16:38.

Same root

ῥάβδοςrhábdos · G4464a stick or wand (as a cudgel, a cane or a baton of royalty)
ἔχωéchō · G2192to hold (used in very various applications, literally or figuratively, direct or remote; such as possession; ability, contiuity, relation, or condition)

Where it appears

Appears 2 times in the Bible.

Acts 16:35 The next morning the city officials sent the police to tell the jailer, “Let those men go!”
Acts 16:38 When the police reported this, the city officials were alarmed to learn that Paul and Silas were Roman citizens.

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.