Morrow - Vine's Expository Dictionary of New Testament Words

Morrow

[ 1,,G839, aurion ]
an adverb denoting tomorrow," is used
(a) with this meaning in Matthew 6:30; Luke 12:28; Luke 13:32-Luke 13:33; Acts 23:15 (in some mss.), Acts 23:20; Acts 25:22; 1 Corinthians 15:32; James 4:13;
(b) with the word hemera, "day," understood (occurring this in the papyri), translated as a noun, "(the) morrow," Matthew 6:34 (twice); Luke 10:35; Acts 4:3 (AV, "next day"); Acts 4:5; James 4:14.

[ 2,,G1887, epaurion ]
epi, "upon," and No. 1, is used as in
(b) above; the RV always translates it "on (the) morrow;" in the following the AV has "(the) next day," Matthew 27:62; John 1:29, John 1:35 ("the next day after"); John 12:12; Acts 14:20; Acts 21:8; Acts 25:6; "(the) day following," John 1:43; John 6:22; "the morrow after," Acts 10:24.

Note: In Acts 25:17, AV, the adverb hexes, "next, successively, in order," is translated "on (the) morrow." See NEXT.

Vine's Expository Dictionary of New Testament Words