yaksha; Buddhist guardian deity; fierce demon-like warrior
In Buddhism, yakshas are protective deities often depicted with fierce, demonic features. Figuratively, can refer to a fierce or terrifying person.
from Sanskrit yakṣa
金剛夜叉明王は五つの明王の一つです。
Kongō Yasha Myōō is one of the Five Wisdom Kings.
彼
His face twisted into something fiercely demonic with rage.
When she gets angry, she's like a yaksha.
彼女は夜叉になって怒鳴りつけた。
She turned into a raging fury and screamed at him.
鬼神 is a broad term for fierce gods or spirits, whereas 夜叉 specifically names the yaksha class of Buddhist guardian demons.
菩薩 (bodhisattva) embodies compassionate, benevolent Buddhist virtue, in contrast to 夜叉, which embodies fierce, demon-like ferocity.
阿修羅 are combative demigods who battle the devas, while 夜叉 are a separate class of fierce, sometimes cannibalistic spirits/demons in Buddhist lore.
Standard kanji form; used in Buddhist contexts and figurative expressions.
From Sanskrit yakṣa, a class of nature-spirits or guardian deities in Hindu and Buddhist mythology. The kanji 夜叉 are phonetic ateji.