Čėsna

Cf. (?) Polish Czesny ¹, bRuss. Часнoвiч, Russian. Честнoй ². However, other connections are also possible - cf. Brus Шчасны, Cчасны, Cчасный, Щасный, Щасны, Щаснoй ³, Russian. Щаснoй ⁴: BRuss. шчасны, Russian. счастный „laimingas“ ⁵. Due to lit. č: sl. see here Čẽp. However, the first connection seems more plausible, especially due to lit. < column step „garbė, pagarba“ (LKŽ II 81).