ascesis

/ษ™หˆsiหsษชs/

IPA: /AE0 S AH0 S IH0 S/

noun
  1. 1

    (Rigorous) self-discipline, particularly as a religious observance; asceticism.

  2. 2

    (specifically) The praxis or "exercise" of asceticism and self-denial of impulses or passions for the sake of piety, theosis, and connection with God.

Source: https://en.wiktionary.org/wiki/ascesis