Lämmitelin
Lämmitelin is a Finnish surname. Its literal translation from Finnish is "I warmed up." The name likely originated as a nickname or a descriptive surname, perhaps referring to someone who was warm-hearted, or someone who worked with heating or fire. As with many surnames, its exact origin and early adoption are not widely documented, but it is a recognized family name in Finland.
The prevalence of the surname Lämmitelin is relatively low, indicating it is not among the most common