ETYM back , n . + bone.
1. The bone running down the back of vertebrate animal; the spine.
2. A computer network that connects other computer networks.
3. (Informal) Fortitude; SYN. grit, guts, sand, gumption.

1. Impudent aggressiveness; SYN. effrontery, nerve, brass, face, cheek.
2. The quality of standing out strongly and distinctly; SYN. strikingness.
3. The trait of being willing to undertake things that involve risk or danger; SYN. daring, hardihood.

ETYM Cf. French braverie.
1. The quality of being brave; fearless; intrepidity.
2. The act of braving; defiance; bravado.
3. Splendor; magnificence; showy appearance; ostentation; fine dress.

ETYM Old Eng. corage heart, mind, will, courage, Old Fren. corage, French courage, from a Late Lat. derivative of Latin cor heart. Related to Heart.
A quality of spirit that enables one to face danger of pain without showing fear; SYN. courageousness, bravery.

ETYM OE, greet, greot, sand, gravel, AS. greót grit, sant, dust; akin to OS griott, OFries. gret gravel, Old High Germ. grioz, German griess, Icel. grjôt, and to Eng. groats, grout. Related to Groats, Grout, Grail gravel.
A hard coarse-grained siliceous sandstone; SYN. gritrock, gritstone.

ETYM Old Eng. gom, gome, attention; akin to AS. geómian, gyman, to regard, observe, gyme care, OS. gomean to heed, Goth. gaumjan to see, notice.
Courage; audacity.

ETYM Gael. spong, or Irish sponc, tinder, sponge; cf. as. sponge a sponge (Latin spongia), spôn a chip. Related to Sponge, Punk.
1. Wood that readily takes fire; touchwood.
2. Courage or initiative; pluck.