W sprawie pruskich nazw na Mazowszu (na marginesie artykułu Leszka Bednarczuka)

This contribution discusses Mazovian water and place names which are considered by some toponomasticians to be of Prussian origin. Using several examples, it is shown that this conclusion was drawn on the basis of outdated literature on the subject and disregarding more recent publications, with the oldest attestations of names (Narew, Wkra, Puszów Las and Puzów Stok) were not included in the considerations, nor were attestations referring to other topographical objects (Miedzna) assigned to them. Other names with an evidently Baltic basis were omitted (e.g. the first element in the name Kiejstutów Bród). Some of the discussed names in terms of their structure are Polish names with Polish appellatives as their basis (Rapaty, Kolno), the bases of others are names included in the oldest European naming layer, which may have functioned in both Slavic and Baltic languages.