1grit 
/ˈgrɪt/ noun
/ˈgrɪt/ noun [noncount] 1 : very small pieces of sand or stone
▪ He shook out his shoes to remove the small rocks and grit. 2 informal : mental toughness and courage
▪ Through resourcefulness and grit, the pioneers survived the winter.
▪ He shook out his shoes to remove the small rocks and grit.
▪ Through resourcefulness and grit, the pioneers survived the winter.
