comitatiivsed

Comitatiivsed refers to a grammatical concept found in some languages, particularly in Finnic languages like Finnish and Estonian. It describes a case that indicates accompaniment or the entity with which something is done or happens. Essentially, it marks a noun or pronoun as being "with" or "together with" another entity.

The comitative case is often expressed through specific suffixes attached to the noun or pronoun. For example, in Finnish, the comitative suffix is typically "-ne" or "-nensa". In Estonian, it can be "-ga". The exact form and usage can vary depending on the specific language and its grammatical rules.

This case serves to differentiate between performing an action alone and performing it in the company of someone or something else. For instance, one might say "I walked" versus "I walked with my friend". The comitative case helps to convey this distinction clearly within the sentence structure. While not present in all languages, the comitative case is a notable feature in those that possess it, contributing to the richness and nuance of their grammatical systems.