lit., "up to the middle of," i.e., among, or in the midst of, hence, between, is used in 1 Corinthians 6:5 , of those in the church able to decide between brother and brother, instead of their going to law with one another in the world's courts.
"in the midst, or between" (from meta, and xun, i.e., sun, "with"), is used as a preposition, (a) of mutual relation, Matthew 18:15; Acts 15:9; Romans 2:15 , RV, "one with another," lit., "between one another," for AV, "the meanwhile;" (b) of place, Matthew 23:35; Luke 11:51; 16:26; Acts 12:6; (c) of time, "meanwhile," John 4:31 . In Acts 13:42 , the AV marg. has "in the week between," the literal rendering. See WHILE.
Note: The phrase ek meta (ek, "out of," meta, "with") is translated "between ... and" in the AV of John 3:25 (RV, "on the part of ... with").