*Aþalamār (Proto-Germanic) comes from Proto-Germanic aþalaz, from Proto-Germanic aþalą, from Proto-Indo-European at-al, from Proto-Indo-European h₂el- — to grow, nourish; beyond, other; to wander, roam.
Ancestry of “*Aþalamār”, step by step
*Aþalamār traces back through two separate lines of ancestry.