G0546
ἀπειλέω
to threaten
ἀπειλέω, -ῶ (ἀπειλή) [in LXX: Nam.1:4 (גָּעַר), Isa.66:14 (זָעַם), Sir.19:17, al. ;] to threaten: 1Pe.2:23; mid., Act.4:17 (see MM, VGT, see word, and cf. προσαπειλέω).† (AS)
Full Thayer's lexicon entry
ἀπειλέω — apeiléō
ἀπειλέω, ἀπείλω: imperfect ἠπειλουν; 1 aorist middle ἠπειλησαμην; to threaten, menace: 1Pe 2:23; in middle, according to later Greek usage ((Appendix, bell. 104:3, 29); Polyaen. 7, 35, 2), actively (Buttmann, 54 (47)): Act 4:17 (ἀπειλή (L T Tr WH omit) ἀπειλεῖσθαι, with the dative of person followed by μή with infinitive, with sternest threats to forbid one to etc., Winers Grammar, § 54, 3; (Buttmann, 183 (159))). (From Homer down.) (Compare: προσαπειλέω.)
2 occurrences
Acts (1), I Peter (1)