rühmitaja
Rühmitaja is an Estonian noun meaning a person who forms, organizes, or leads a rühmitus—a group, faction, or collective. The word derives from rühm “group” and the agent suffix -taja, producing “one who creates or directs a group.”
Usage and nuance: The term is neutral in form but is used in contexts involving collective action.
Related terms include rühm (group), rühmitus (grouping or formation), and rühmituse juht (leader of a group). In