Linguistically speaking, the ancestors of the West Balts were the Pre-Baltic Mazovia-Podlasie / Lublin groups of the Trzciniec culture along the Bug river basin, which bordered the Komarov (Proto-Slavic) culture of the Podolian Uplands further to the South. The Trzciniec ("Streaked" pottery) culture was related to the Komarov culture, but different, as ceramics, metalwork, hydronyms, and burial rites indicate. This difference can be seen in the word for man's best friend, "dog ", where West Baltic had sunis vs. Old Church Slavic pьsъ, or "rock" - Baltic akmō / ašmō vs. O.C. Slavic kamy, and with a disparity of equine or copper words. The older relatedness is illustrated by the word for "name" - West Baltic emenis, Slavic imę, and Albanian emen vs. East Baltic Lithuanian vardas.