toughness

Etymology
From, , , equivalent to.

Noun

 * 1)  The state of being tough.
 * 2)  Resistance to fracture when stressed, or the  of such resistance.
 * 3)  Fortitude; ;.
 * 4) A formidable difficulty.
 * 1) A formidable difficulty.

Translations

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 * Chinese:
 * Mandarin:
 * Estonian:
 * Finnish:, ,
 * French:, ,
 * German:
 * Italian:
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 * Thai: