WELKIN Meaning of WELKIN in English /wel"kin/ , n. Chiefly Literary.the sky; the vault of heaven. [ bef. 900; ME welken ( e ), OE welcn, var. of wolcen cloud, sky; c. G Wolke cloud ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012