The Avestan word pərəθu-
Word pərəθu-
Meaning broad, wide
See also Homeric Greek: πλατύς ‘wide, broad’
Proto-Indo-European: *pl̥th₂ú- ‘wide, broad’
Sanskrit: pr̥thú- ‘broad, wide’
Synonyms paθana-

Other words that might be of interest
bǝrǝzant- ‘great, lofty’, skarǝna- ‘round’, darəga- ‘long’, mazaṇt- ‘great’