👉 In the context of linguistics and ethology, "euonymy" refers to a characteristic or trait that is unique to certain species within their respective ecological niches. Specifically, it involves traits such as language development, communication skills, social organization, reproductive strategies, and behavior patterns that are specific to one particular species. These characteristics are considered the "biospecific traits," which are essential for understanding the evolutionary history of a species and can be used to study its ecology and evolution. The term was