ἐπιβοάωepiboáō

to cry out: Acts 25:24 (Rec., for βοάω, see that word).

Greek (New Testament) · G1916

Same root

ἐπίepí · G1909properly, meaning superimposition (of time, place, order, etc.), as a relation of distribution (with the genitive case), i.e. over, upon, etc.; of rest (with the dative case) at, on, etc.; of direction (with the accusative case) towards, upon, etc.
βοάωboáō · G994to halloo, i.e. shout (for help or in a tumultuous way)

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