lúdenlu, n. Black; usually connoting richness and fertility. Aléfu (absolute darkness) may be used as a synonym for this if the author wishes to emphasize hopelessness; solefu (regular darkness) might either signify escape from the harsh UV-rich light of Ksreskézo, obscuration, or (more rarely), dying hope. Lúdenlu itself is the color of ink (lú- + denlu), and of fertile soil.