Английский разговорный словарь (основной) - serenity
Serenity
serenity
sɪˈrenɪtɪ n. (pl. -ies) 1 tranquillity, beingserene. 2 (Serenity) a title used in addressing and referring to a reigning prince or similardignitary (your Serenity). [F s÷r÷nit÷ or L serenitas (as SERENE)]