Several other words in Latvian have been derived from these colors, namely grass is called zāle (from zaļš), while the name for iris is zīlīte (from zils). The now archaic word mēļš was used to describe both dark blue and black (probably indicating that previously zils was used only for lighter shades of blue). For instance, blueberries and blackberries are called mellenes. In Latvian black is "melns" (in some local dialects "mells"). In Lithuanian žalias is green, mėlynas is blue and žilas is gray (hair), grizzled. Slavic Bulgarian, a South Slavic language, makes a clear distinction between blue (синьо, sinyo), green (зелено, zeleno), and black (черно, cherno). In the Polish language, blue (niebieski from niebo – sky) and green (zielony) are treated as separate colors. The word for sky blue or azure—błękitny—might be considered either a basic color or a shade of blue by different speakers. Similarly dark blue or navy blue (granatowy—deriving from the name of pomegranate (granat), some cultivars of which are dark purplish blue in color) can be considered by some speakers as a separate basic color. Black (czarny) is completely distinguished from blue. As in English, Polish distinguishes pink ("różowy") from red ("czerwony"). The word siwy means blue-gray in Polish (literally: "color of gray hair"). The word siny refers to violet-blue and is used to describe the color of bruises ("siniaki"), hematoma, and the blue skin discoloration that can result from moderate hypothermia. Russian does not have a single word referring to the whole range of colors denoted by the English term "blue". Instead, it traditionally treats light blue (голубой, goluboy) as a separate color independent from plain or dark blue (синий, siniy), with all seven "basic" colors of the spectrum (red–orange–yellow–green–голубой / goluboy (sky blue, light azure, but does not equal cyan)–синий / siniy ("true" deep blue, like synthetic ultramarine)–violet) while in English the light blues like azure and cyan are considered mere shades of "blue" and not different colors. The Russian word for "green" is зелёный, zielioniy. To better understand this, consider that English makes a similar distinction between "red" and light red (pink, which is considered a different color and not merely a kind of red), but such a distinction is unknown in several other languages; for example, both "red" ( , hóng, traditionally called ), and "pink" (, fěn hóng, lit. "powder red") have traditionally been considered varieties of a single color