The A.V. gives a variety of renderings to this verb. Luk 2:52, increased; Gal 1:14, profited; 2Ti 3:9, proceed; 2Ti 3:13, wax. The word originally means to beat forward or lengthen out by hammering. Hence to promote, and intransitively to go forward or proceed.
Let us cast off (ἀποθώμεθα)
As one puts off the garments of the night. For this use of the simple τίθημι, see on giveth his life, Joh 10:11.