Tansseissa
tansseissa is the inessive plural form of the Finnish noun tanssi, meaning "the dances" or "in the dances." In Finnish, the inessive case with the suffix -ssa/-ssä marks location "in" or "at" something. Therefore tansseissa literally means "in the dances" or "at the dances" and is used to describe being present at dancing events or activities.
Usage: It often appears in descriptions of social dance settings, such as ballroom or folk dances, and