αὔριον
aúrion
ow'-ree-on
Greek: Adverb
from a derivative of the same as ἀήρ (meaning a breeze, i.e. the morning air); properly, fresh, i.e. (adverb with ellipsis of ἡμέρα) to-morrow.

KJV translates as: (to)morrow, next day