Bébinn (Irish) comes from Irish binn, from Old Irish benn, from Proto-Celtic bandā, from Proto-Indo-European bn̥dʰéh₂, from Proto-Indo-European bendʰ-, from Proto-Indo-European bʰendʰ- — to bind; bond.
Ancestry of “Bébinn”, step by step
Bébinn traces back through two separate lines of ancestry.