LTStraipsnyje aptariami Gotfrydo Ostermejerio veikale "Kritischer Beytrag zur Altpreußischen Religionsgeschichte" (Marienwerder, 1775) minimų prūsų ir lietuvių teonimų bei mitonimo krivis etimologinės analizės metodologijos principai ir jų kongruencija dabartinių šios plotmės tyrimų aspektu.Reikšminiai žodžiai: Gotfrydas Ostermejeris; Mitonimai; Teonimas; Etimologinė analizė; Gottfried Ostermeyer; Mythonyms; Theonyms; Etymology.
ENThe paper deals with the methodology of etymological analysis of the mythonyms used by Gottfried Ostermeyer (1716–1800) in his "Kritischer Beytrag zur Altpreußischen Religionsgeschichte" (Marienwerder, 1775). The prospect of etymological and mythological research of the mythonyms of EPr. Mag(g)ilà, magyla, Lith. Mogyle and the possibility of the common origin of the hieronym (sacred name) krivis and sub. Lith. krivūlė are also discussed. These two mythological facts in Gottfried Ostermeyer’s book are believed to be mentioned for the first time. [...] To summarize the outcomes of the research into Prussian and Lithuanian theonymes mentioned in the work made on the basis of a parallel comparison of Ostermeyer’s methodology of etymological analysis and contemporary results of the same research field, the principal statement is to be formulated: mythological data presented in Kritischer Beytrag zur Altpreußischen Religionsgeschichte is constructive due to the verification factor.