Names of Wells in Moravia and Silesia Small water sources mostly of natural origin, situated in open landscape, represent special onymic objects within the category of hydronyms. In the corpus of minor place names of Moravia and Silesia, the names of the water sources are quite numerous. In their formation, various ways are used, e. g. toponymization (Žydelek – from žydelek ‘small fountain’), derivation (Smrďačka from smrdět ‘to stink’), composition (Bolibřuška from bolet ‘to pain’ and břuch dial ‘stomach’), borrowing or adaptation of foreign toponyms (Landek). The material contains mainly one-word and two-word names without preposition (Svatá voda ‘holy water’). The names are motivated mostly by position (Pod Kněhyňu ‘below Kněhyňa’), quality (Sirkovica ‘sulphur water’), and relation of the denominated object to a person (Břouškova studánka ‘Břoušek’s well’). Collected material contains many dialect forms (Belík, Kadlúbek, Koráb etc.). Etymological explanations of most names are transparent, the folk explanations are to be taken critically.