1: αὔριον
(Strong's #839 — Adverb — aurion — ow'-ree-on )

is used either without the article, e.g., Matthew 6:30; 1—Corinthians 15:32; James 4:13; or with the article in the feminine form, to agree with hemera, "day," e.g., Matthew 6:34; Acts 4:3 , RV, "the morrow" (AV, "next day"); James 4:14; preceded by epi, "on," e.g., Luke 10:35; Acts 4:5 .