←
Proto-Brythonic *mọr (inherited)
←
Proto-Celtic *māros (inherited)
←
Proto-Indo-European *meh₁- (root)
←
Proto-Indo-European *moh₁ros (inherited)
←
Proto-Indo-European *meh₁- (mention)
←
Old Welsh maur (inherited)
←
Middle Welsh mawr (inherited)
→
Old English mære (cognate)
→
Scottish Gaelic mòr (cognate)
→
Old Irish mór (cognate)