1. In the book by K. Aleknavičius „Pasakos pritikimaj weselos ir giesmes“, issued in Vilnius in 1861, a noun is used much more abundantly (~4119 forms) as is an adjective (~724 forms). 2. The book by K.Aleknavičius „Pasakos pritikimaj weselos ir giesmes“ is written using the Eastern version of the writings language. 3. There are plenty of slavisms in the poetry collection by K.Aleknavičius „Pasakos pritikimaj weselos ir giesmes“, as it is characteristic to the writings of that period. 4. The nouns and adjectives, found in the book, are compared to the dialect of the Eastern Highland Lithuanians, and nouns and adjectives of the modern common language, their paradigms are reconstructed. 5. The biography of K.Aleknavičius is reviewed and the section, named „The characteristics of the orthography“, is presented. 6. This morphological study reveals the situation of non-religious writings of the Eastern Highland Lithuanian dialect, there is also data provided on various old and till now unaltered forms of denominatives (nouns and adjectives) and their usage. 7. K.Aleknavičius’ work „Pasakos pritikimaj weselos ir giesmes“ is written using the dialect of the Eastern Highland Lithuanians, however the text of the book from the viewpoint of orthography, phonetics and morphology is not consistent. 8. There are types of masculine, feminine and composite declension found in the book. 9. There are plenty of personal names and place-names in the poetical texts of the book, for example:... [to full text]