keisarin

Keisarin is the genitive singular form of the Finnish noun keisari, meaning emperor. It is used to express possession or association with an emperor, as in keisarin hallinto (the emperor's government) or keisarin valta (the emperor's power).

Etymology: The Finnish keisari is a loanword borrowed from Swedish kejsare, which in turn traces to German Kaiser and ultimately Latin Caesar. The genitive keisarin is formed by adding the suffix -in to keisari, following standard Finnish noun inflection.

Usage: In modern Finnish, keisarin is a common noun form and is not capitalized unless it appears at the start of a sentence. It commonly occurs in historical writing and descriptive phrases about imperial authority. When referring specifically to the Russian ruler, Finnish typically uses tsaarin rather than keisarin, though keisari can appear in historical or literary contexts.

See also: keisari, tsaar, Kaiser.