Mana

From Maori mana, ultimately from Proto-Polynesian *mana.

Full definition of mana

(uncountable)

Power, prestige; specifically, a form of supernatural energy in Polynesian religion that inheres in things or people. from 19th c.

1971, Keith Thomas, Religion and the Decline of Magic, Folio Society 2012, p. 193:But in popular estimation their essential virtue derived from the personal mana of the sovereign.

2007, "bear", Makes Lovely Julienne Ogres.... (on newsgroup rec.games.roguelike.angband)Teleporting from an open room where there were a dozen black orcs firing bows ... landed me, low on mana and hitpoints, in a room full of gnome mages who instantly summoned four umber hulks and a xorn!
2010, Ernest Adams, Fundamentals of Game Design (page 580)Mana often grows in exponential proportion to population size, so as the population increases the player acquires vastly greater powersâ€”a progression that god games share with spellcaster characters in role-playing games.