described in terms of brightness (valkea vs. musta), using non-color adjectives for further specificity. Alternatively, it appears that the distinction between valkea and musta was in fact "clean, shining" vs. "dirty, murky". The original meaning of sini was possibly either "black/dark" or "green". Mauno Koski's theory is that dark colors of high saturation—both blue and green—would be sini, while shades of color with low saturation, such as dark brown or black, would be musta. Although it is theorized that originally vihreä was not a true color name and was used to describe plants only, the occurrence of vihreä or viha as a name of a color in several related languages shows that it was probably polysemic (meaning both "green" and "verdant") already in early Baltic-Finnic. However, whatever the case with these theories, differentiation of blue and green must be at least as old as the Baltic-Finnic languages. Hungarian makes the distinction between green (zöld) and blue (kék), and also distinguishes black (fekete). Intermediate colors between green and blue are commonly referred to as zöldeskék (literally greenish-blue) or kékeszöld (bluish-green), but names for specific colors in this continuum—like turquoise (türkiz)—also exist. Particular shades of a color can also have separate names, such as azure (azúr). Turkic Kazakh The Kazakh language, like many Turkic languages, distinguishes between kök for blue and jasâl for green. In Kazakh, many adjectival variations can be found referring to perceived gradations in saturation level of "blue", such as kögildir, kökshil, and kökboz, which respectively denominate the gradual decrease in the intensity, kökboz being often used as a color referent in its own right. Kök is occasionally used to denote green plants (e.g. 'kök' shöp'), but such usage is mostly confined to poetic utterances or certain localized dialects. Turkish Turkish treats dark or navy blue (lacivert, from the same Persian root as English azure and lapis lazuli) as a separate color from plain or light blue (mavi). Mavi is derived from the Arabic word مائي mā'ī 'like water' (ماء mā being the Arabic word for water) and lacivert is derived from Persian لاجورد lājvard 'lapis lazuli', a semiprecious stone with the color of navy blue. In the pre-Islamic religion of the Turks, blue is the color that represented the east, as well as the zodiac sign Aquarius (the Water Bearer). A characteristic tone of blue, turquoise, was much used by the Turks for their traditional decorations and jewelry.