leas-bhràthair (Scottish Gaelic) comes from Scottish Gaelic bràthair, from Old Irish bráthair, from Proto-Celtic brātīr, from Proto-Indo-European bʰréh₂tēr — brother.
leas-bhràthair (Scottish Gaelic): stepbrother
Definitions
stepbrother
Ancestry of “leas-bhràthair”, step by step
leas-bhràthair traces back through two separate lines of ancestry.