1. Sand or gravel; rough, hard particles.
2. The coarse part of meal.
3. Grain, especially. Oats or wheat, hulled and coarsely ground; in high milling, fragments of cracked wheat smaller than groats.
4. (Science: geology) a hard, coarse-grained siliceous sandstone; as, millstone grit; called also gritrock and gritstone. The name is also applied to a finer sharp-grained sandstone; as, grindstone grit.
5. Structure, as adapted to grind or sharpen; as, a hone of good grit.
6. Firmness of mind; invincible spirit; unyielding courage; fortitude.
Origin: oe, greet, greot, sand, gravel, as. Greot grit, sant, dust; akin to os griott, OFries. Gret gravel, OHG. Grioz, g. Griess, Icel. Grjot, and to E. Groats, grout. See Groats, Grout, and cf. Grail gravel.