askesis

[uh-skee-sis] /əˈski sɪs/
noun, plural askeses
[uh-skee-seez] /əˈski siz/ (Show IPA)
1.
strict self-discipline or self-control, as for religious or meditative purposes.
Also, ascesis.
Origin
1870-75; Greek askēsis exercise, training, equivalent to askē- (variant stem of askeîn to practice, train) + -sis -sis
Contemporary definitions for askesis
noun

a practice of severe self-discipline or ascetism for spiritual reasons; also written ascesis

Word Origin

Gk.