Literature Reference: 惇，厚也。——《说文》 Dun means sincerity and generosity. Source from 'Shuowen Jiezi'.
惇: Honest and steadfast; sincere and profound. In names, it often signifies the blessing of both prosperity and longevity, a life of simplicity in middle age, and auspiciousness in later years, embodying a character of honor and grace.
Meaning: Dun signifies sincerity, generosity, and the quality of being kind-hearted.