רֶטֶט (reṭeṭreh'-tetnoun|masculinetrembling)
[Heb] רֶטֶט ETCBC: רֶטֶט‎ (subs|panic) OSHL: t.cj.ab TWOT: 2156a GK: H8185
Derivation: from an unused root meaning to tremble;
Strong's: terror
KJV: fear.