Is “Askesis” a Scrabble word?
Yes
ASKESIS
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Askesis
/əˈskiːsɪs/
noun
1.(Rigorous) self-discipline, particularly as a religious observance; asceticism.
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.