Incidentally, the word "殯宮" (funeral parlor) is pronounced 'Arakinomiya' in Japanese, and the first part of this word (i.e. "ara") is believed to have been derived from the word Aratama.
尚、殯宮を、「あらきのみや」と訓ずるのは、荒魂と関係があるのではないかと思われる。