荒魂

Etymology 1
Compound of.

Noun

 * 1)  one of the four souls of one's spirit, or one of the four aspects of a kami, manifesting characteristics of wildness and violence, possibly also decisiveness and courage

Usage notes
This kanji spelling for this reading is less common in dictionaries, which list instead. However, the shorter kanji spelling with the aramitama reading appears to be more common in various other reference works,   as well as in actual usage.

Etymology 2
Compound of.