Same word as valiance:

adventuresomeness, adventurousness, audacity, backbone, braveness, bravery, bravura, courageousness, daring, dash, dauntlessness, determination, doughtiness, endurance, enterprise, fearlessness, firmness, fortitude, gallantry, gameness, grit, guts, hardihood, heart, heroism, intrepidity, intrepidness, lion-heartedness, mettle, nerve, pluck, pluckiness, power, prowess, pugnacity, rashness, recklessness, resolution, spirit, spunk, stoutheartedness, temerity, tenacity, undauntedness, valiancy, valiantness, valor, venturesomeness, �lan