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Albanian gjak
Ancient Greek ὀπός (cognate)
Proto-Indo-European *sokʷos (derived)
Lithuanian sakai (cognate)
Proto-Slavic *sokъ (cognate)
Proto-Albanian *źak- (inherited)

Albanian gjakmarrje (compound)
Albanian gjakpirës (compound)
Albanian kurmagjak (compound)
Albanian tamblagjak (compound)
Albanian lulegjake (compound)