balahh (Hebrew #1089)
to palpitate; hence, (causatively) to terrify
KJV usage: trouble.
Pronounce: baw-lah'
Origin: a primitive root (rather by transposition for 926)
bahal (Hebrew #926)
to tremble inwardly (or palpitate), i.e. (figuratively) be (causative, make) (suddenly) alarmed or agitated; by implication to hasten anxiously
KJV usage: be (make) affrighted (afraid, amazed, dismayed, rash), (be, get, make) haste(-n, -y, -ily), (give) speedy(-ily), thrust out, trouble, vex.
Pronounce: baw-hal'
Origin: a primitive root