i. Substantive usages of αυριον meaning next day:
On the next day, when he departed.... [Luke 10:35 WEB]
Και επι την αυριον { εξελθων ♦ - }....
They laid hands on them, and put them in custody until the next day, for it was now evening. [Acts 4:3 WEB]
Και επεβαλον αυτοις τας χειρας, και εθεντο εις τηρησιν εις την αυριον· ην γαρ εσπερα ηδη.
It happened in the morning.... [Acts 4:5 WEB]
Εγενετο δε επι την αυριον....
ii. Can the substantive be said to always mean next day (i.e., do the following substantive usages also properly mean next day)?
Therefore don’t be anxious for tomorrow the next day, for tomorrow the next day will be anxious for itself.... [Matthew 6:34 WEB]
Μη ουν μεριμνησητε εις την αυριον· η γαρ αυριον μεριμνησει { τα ♦ - } εαυτης....
Come now, you who say the ones saying, “Today or tomorrow the next day let’s go into this city....” [James 4:13 WEB]
Αγε νυν οι λεγοντες, Σημερον { και αυριον πορευσωμεθα ♦ η αυριον πορευσομεθα } εις τηνδε την πολιν....Whereas you Who don’t know what your life will be like about tomorrow the next day.... [James 4:14 WEB]
οιτινες ουκ επιστασθε το της αυριον (the of-the-next-day)....
iii. Could Luke 13:33 have been equally written αυριον και τη(ι) αυριον instead of αυριον και τη(ι) εχομενη(ι) [εχω]?
Nevertheless I must go on my way today and tomorrow and the next day.... [Luke 13:33 WEB]
Πλην δει με σημερον και αυριον και τη(ι) εχομενη(ι) αυριον πορευεσθαι....