70%RatingSave Gender Masculine Usage Lithuanian Pronounced Pron. /kʲæː.ˈstʊ.tʲɪs/ [key·simplify] Meaning & History From Lithuanian kęsti meaning "to cope, to endure" combined with a diminutive suffix. This was the name of a 14th-century ruler of Lithuania. Related NamesFamily Tree·Details DiminutiveKęstas Name DaysName Days? Lithuania: February 21 Categories actions, Lithuanian grand dukes, rulers, strength