- ascetic (adj.)
- 1640s, from Greek asketikos "rigorously self-disciplined, laborious," from asketes "monk, hermit," earlier "one who practices an art or trade," from askein "to exercise, train," originally "to train for athletic competition, practice gymnastics, exercise."
- self-discipline (n.)
- also self discipline, 1796, from self- + discipline (n.). Related: Self-disciplined.