The second declension. Lithuanian and Prussian o denotes a long ō. Narrowed more, it becomes ū. When more open, it is ā; ā was used in Catechisms in Prussian, o – in Elbing vocabulary. The "ą, ę" correspond to "ų, į" in dialects of eastern Lithuania and acc. sg. is kalbų (kalbą), gėlį (gėlę) in these dialects. The case of -ų corresponds to Latvian and Slavic languages: nom. sg. liepa (Lith.) – linden, liepa (Latv.), ли́па / lipa (Rus.) and acc. sg. liepą and liepų (Lith.), liepu (Latv.), ли́пу / lipu (Rus.).