Lexical Definition

‎בָּלַהּ‎ bâlahh (baw-lah') to trouble ^H:V
a primitive root (rather by transposition for ‎בָּהַל‎)

trouble.

• to palpitate
• hence, (causatively) to terrify

1) (Piel) to trouble

Brown-Driver-Briggs

[‎בָּלַהּ‎] verb trouble (Aramaic , compare Arabic be weak in intellect; see also ‎בהל‎ — only Pi`el Participle ‎מְבַלֲהִים אותם לִבְנוֺת‎ Kt (Qr ‎מְבַהֲלִים‎ needless) Ezra 4:4 troubled them in building.

Brown-Driver-Briggs References