Kopijski
Kopijski is a term that may appear in Slavic-language contexts as an adjective formed from the root kopia, meaning copy, together with the suffix -ski, which is common in Polish and other languages to create adjectives and surnames. As a standalone entry, kopijski is not established as a distinct concept with a widely recognized definition, but it can occur in linguistic, historical, or onomastic (name-related) settings.
Etymology and usage. The form kopijski reflects standard Slavic derivational patterns: kopia provides the semantic field
Possible contexts. In actual usage, kopijski would more often be encountered as part of longer expressions
See also. Kopia, kopijny, the -ski suffix, Polish surnames and toponymy, Slavic adjective formation.