σκληρός (sklērós|sklay-ros'|adjective|hard)
[Grk] σκληρός LN: 20.3, 76.15, 88.135, 88.136 GK: G5017 Hebrew: אַמִּיץ‎, חָרָה‎, עַז‎, פְּרִיץ‎, קָשָׁה‎, קָשָׁה‎, קָשָׁה‎, רָשָׁע‎
Derivation: from the base of σκέλος;
Strong's: dry, i.e. hard or tough (figuratively, harsh, severe)
KJV: --fierce, hard.
See: σκέλος