Where does “Muurinen” come from?

Muurinen (Finnish) comes from Finnish muuri, from Old Swedish mur, from Latin mūrus, from Old Latin moerus, from Proto-Indo-European mēy- — soft, tender, dear.

Ancestry of “Muurinen”, step by step

Step	Language	Word	Meaning
1	Finnish	muuri	wall; barrier, wall
2	Old Swedish	mur	—
3	Latin	mūrus	wall, city wall(s), (usually of a city, as opposed to pariēs)
4	Old Latin	moerus	—
5	Proto-Indo-European	mēy-	soft, tender, dear

Every word from Proto-Indo-European mēy- →Every word from Old Latin moerus →Every word from Latin mūrus →