10 letters · 15 points in Scrabble
adjective tough and callous by virtue of experience
adjective ready and able to resort to force or violence; - Herman Melville
originFrom the stem of Latin pugnāx + -ous, from pugnō (“to fight”), from pugnus (“fist”). By surface analysis, Latin pugn- + -acious.
Etymology from Wiktionary, CC BY-SA 3.0