Proto-IE: *marg(')-
Meaning: boundary, edge
Latin: margo, gen. -inis m., f. `Rand; Grenze'
Celtic: Gaul Brogi-māros, Allo-brogies, etc.; *mrogi- > OIr mruig, bruig `Mark', Cymr bro `Bezirk', Corn bro `Bezirk', Bret bro `Bezirk'
Russ. meaning: граница, край