八十 はちじゅう 日神 にちじんであれば
hachijū katsuni chijindeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 八十禍津日神

1. If/When Yaso-tsuhime-no-kami were…; If/When the eighty great calamity deity were…

Ba Conditional
Mythology