Proto-IE: *rowǝ-
Meaning: free space
Tokharian: A, B ru- 'to open' (Adams 536) [or to 2336?]
Avestan: ravah- `Weite, Raum', ravas-čarāt- `was sich im Freien bewegt'
Latin: rūs, rūris, abl. -ī / -e `Land, Feld, Landgut'
Celtic: OIr rōe, rōi `ebenes Feld' (*rowesiā), rē `Raum' (*rēwiā)
Russ. meaning: свободное пространство
piet-meaning,piet-tokh,piet-avest,piet-germ,piet-lat,piet-celt,piet-rusmean,piet-refer,