σκληρός (sklēróssklay-ros'adjectivehard)
[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