Tettua
Tettua is a term that can refer to several different things, primarily in the context of language and biology. In Finnish, "tettua" is the partitive plural of "tettu," which means "one who is busy" or "one who is occupied." It often implies a persistent or industrious individual. This usage is relatively common in everyday Finnish conversation.
Beyond linguistics, "Tettua" is also the genus name for a group of moths, specifically the family Tettoniidae.