AlegsaOnline.com De (Cyrillic) Author: Leandro Alegsa 13-11-2022 Deh (Д, д) is the fifth letter of the Cyrillic alphabet. It is said as [d]. It comes from the Greek delta. Its old name was dobro. It stands for the Roman D. When written, it looks like a g, and when printed in italics, it is a д.