Proper noun
Gavriil
A Russian male given name from Russian.
The cast included Mikhail Lunacharsky (Boris), Gavriil Morskoy (Pretender), Nikolay Kedrov (Rangoni), and Fyodor Stravinsky (Varlaam). Source: Internet
Russian 18th-century poet Gavriil Derzhavin avoided the harsh R sound (and the letter) in his poem "The Nightingale" in order to render the bird's singing. Source: Internet