History of a word (about the biblical and liturgical translation "τῶν αἰώνων" in Holy Kiev Church XIV-XIX centuries). Part 1.
The article deals with the gradual change of the word form «вѣкомъ» that was used in all Slavic Orthodox Churches from the ancient times to the newer one «вѣковмъ» used in Ukrainian Orthodox Church. This process started in the XVII-th century with the active support of St. Petro Mohila (1596-1647). The new form finally came into use after the accession of the Kyiv Metropolis to the Moscow Patriarchate in 1686, due to changes in Ukrainian grammar of the Church Slavonic language into Russian one.