χαλεπός (chalepóskhal-ep-os'adjectiveviolent; hard)
[Grk] χαλεπός LN: 20.2, 22.29 GK: G5901 Hebrew: יָרֵא
Derivation: perhaps from χαλάω through the idea of reducing the strength;
Strong's: difficult, i.e. dangerous, or (by implication) furious
KJV: --fierce, perilous.
See: χαλάω