prostithēmi

The major lexica are united on the semantic core: LSJ, BDAG, Louw-Nida, and Moulton-Milligan all treat the compound (πρός plus τίθημι) as an ordinary verb of placing beside, adding, or granting, well attested from Homer onward and thoroughly at home in the documentary papyri of banking and legal drafting. Neither Spicq (no entry) nor TDNT (a brief notice inside the τίθημι article) treats it as a theologically freighted lexeme, and EDNT frames its New Testament distinctiveness as a matter of Septuagintal idiom rather than doctrine. In the LXX the verb becomes the standard rendering of Hebrew יסף (to add, do again), and, by phonetic and semantic blurring with אסף (to gather), it also carries the burial formula gathered to his people (Wevers, Notes on the Greek Text of Genesis). Two idioms result and both surface in the NT: the Hebraistic infinitive construction meaning to do again (Conybeare-Stock's paradigmatic Hebraism, qualified by J. A. L. Lee, The Greek of the Pentateuch, who notes genuine Koine parallels), and the death formula of Acts 13:36. On Luke's usage the mainstream view (Wilcox, The Semitisms of Acts; Fitzmyer; Barrett; Keener) is that these are conscious Septuagintalisms, Luke a Greek writer imitating biblical register, against Turner's maximalist Jewish Greek dialect. The sole Pauline instance, Galatians 3:19, drives the sharpest debate, over what Paul implies by choosing a verb of supplementation instead of the covenant word to give.