The aim of this book is to research the Ruthenian language fragments related to the conceptualisation and categorisation of domestic animals. An interdisciplinary framework of Cognitive Linguistic theories and methodologies were employed, including conceptual metaphor analysis, categorization, and association experiments. This publication reveals prototypical members of domestic animal categories in the contemporary world image in the Ruthenian language of Vojvodina which is reconstructed through the results of association experiments. Considering the levels of research that show a petrified image of the world, manifested at the level of nominations and phraseologisms, the shift of certain members of these categories was followed. In that sense, a horse, a cow and a dog changed their places in categories, which also shows a change in human needs from domestic animals from labor-related assistance and providers of food to people's best and most loyal friends.