Peter Giles

“ In others like Mackenzie, z is now universally pronounced, though as late as the middle of the 18th century Lord Karnes declared that to hear Mackenzie pronounced with a z turned his stomach. (P. Gi.) ”

“ This Latin sound seems, at least initially, to have represented two originally separate sounds, for Greek represents the first sound of iugum by ζ (ζυγόν) while in other words it represents a i̯ (y) of other languages by the “rough breathing” (h or ‛) : ἁγνός, “holy,” is the same word as the Sanskrit yajnas. The English words that correspond etymologically to iugum and iuvencus are “yoke” and “young.” In Northern English the symbol ȝ survived longer than in the southern part of the island, and in Scottish documents of the 16th century was confused with z. ”