Tuusikko
Tuusikko is a Finnish surname. It is derived from the Finnish word "tuus", which can refer to a spruce tree. The suffix "-ikko" is a common Finnish diminutive or collective suffix, suggesting a place where spruce trees are abundant or a small spruce grove. Therefore, the surname likely originated from a place name associated with spruce trees. Surnames in Finland, like in many other cultures, often evolved from geographical features, personal characteristics, or occupations. Research into the specific origins of the Tuusikko surname might reveal a particular location or family history in Finland. The prevalence of the surname can be tracked through Finnish population registries and genealogical databases.