toimumisel

Toimumisel is an Estonian word-form derived from the noun toimumine, which means occurrence or taking place. The form is used to indicate the time or condition under which something happens. It is formed by turning the -mine noun into the -misel form (the -mine suffix changes to -misel). This construction is common in formal and administrative language, including legal texts, regulations, and academic writing, and is less typical in everyday speech.

In meaning, toimumisel roughly corresponds to English phrases such as “during the occurrence,” “in the event of,” or “at the time of” the referenced event. The form is typically used to provide temporal or conditional information, often modifying a main clause or specifying the circumstances surrounding an action or decision. It can appear in subordinate clauses or in statements that describe procedures tied to specific moments or events.

Etymology and related forms: toimumisel comes from the verb toimuma (to take place, to occur) and the abstract noun toimumine (occurrence). The adaptation to -misel follows a common pattern in Estonian for creating adverbial or temporal expressions from -mine nouns.

See also: toimumine, Estonian grammar, temporal expressions in Estonian, legal Estonian.