köken: From a Vulgar Latin root *albaster, albastrum, derived from Latin albus (“white”). Probably originally referred to the whiteness in a lightly clouded sky. See also the formations in Italian biancastro (“whitish”), nerastro (“blackish”), French blanchâtre (“whitish”), noirâtre (“blackish”) (with the suffixes -astro and -âtre deriving from Latin -astrum, accusative singular of -aster). Compare also…
çekim: karşılaştırma по́-лазу́рни · üstünlük на́й-лазу́рни
köken: From лазур (lazur, “clear sky”) + -ен (-en), from Latin lazurium (“bright sky”), itself borrowed from Arabic لَازَوَرْد (lāzaward, “lapis lazuli”), via Russian лазу́рь (lazúrʹ). Akin to English azure, Italian azzurro, Spanish azur where the initial #l- is reinterpreted as the definite article l'- and consequently dropped.