Strong's Definition
a primitive root (rather by transposition for 926); to palpitate; hence, (causatively) to terrify
KJV Usage: trouble
STEPBible — Tyndale Abridged Hebrew Lexicon
בָּלַהּ (ba.lah) — to trouble. (Piel) to trouble
UBS Dictionary of Biblical Hebrew
verb
Afraid | verb pi
to make afraid = action by which someone instills fear in someone else in order to deter him/her from his/her course of action
1 EZR 4:4 MT-K מבלהים | MT-Q מְבַהֲלִים = בהל
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
[בָּלַהּ] vb. trouble—only Pi. Kt Ezr 4:4 troubled them in building. ref