Deorlaf (Old English) comes from Old English dēor, from Proto-West Germanic deuʀ, from Proto-Germanic deuzą, from Proto-Indo-European dʰewsóm, from Proto-Indo-European dʰéws, from Proto-Indo-European dʰwes- — to breathe; breath; spirit, soul > creature.
Ancestry of “Deorlaf”, step by step
Deorlaf traces back through two separate lines of ancestry.