Mainio

Gender: Masculine
Origin: Finnish
Meaning: “excellent.”

The name comes directly from the Finnish word for excellent. Its designated name day is September 5th. Pronuniciation can be heard here: http://www.forvo.com/search/Mainio/

Feminine forms are, Maina, Maini and Mainikki the designated name-day is May 3rd.

Sources

1. http://www.behindthename.com/namedays/lists/fin.php
2. http://www.nordicnames.de/wiki/Mainio