Leireimsskógr (Old Norse) comes from Old Norse Leireimr, from Old Norse heimr, from Proto-Germanic haimaz, from Proto-Indo-European ḱóymos, from Proto-Indo-European ḱey- — to be lying down; to settle.
Ancestry of “Leireimsskógr”, step by step
Leireimsskógr traces back through two separate lines of ancestry.