Końcówka miejscownika liczby mnogiej rzeczowników w historii języka polskiego

Nouns of all declensions (Plural No.) In contemporary Polish have all the ending -ach. However, the names of the following countriest Węgry (Hun­gary), Niemcy (Germany), Włochy (Italy) take the locative ending - ach. The present work attempts to present the historical development of locative endings of nouns in the plural form from the earliest written record in Polish up to the first half of the 19th century where the ending -ach is prevailing. The material analysed in the study shows that the 16th c. was the turn­ing point in the development of Polish declension system. The trend of the changes at that time was to simplify the declensions and to decrease the number of declension types. These tendencies are confirmed by the developm­ent of locative endings of nouns in the plural.