Proto-IE: *arg'-/*e- <PIH *H->
Meaning: white, brilliant
Hittite: harki- `weiss, hell' (Tischler 177)
Tokharian: A ārki, B arkwi weiss (PT *ārkw(ä)i) (Adams 49-50)
Old Indian: árjuna- `white, clear'
Avestan: arǝzah- n. `Nachmitteg und Abend' (Bed. fraglich)
Old Greek: argó- `weissglänzend'; argi- in compounds; árgemo-n n., á́rgemo-s m. `weisser Fleck im Auge, albugo'
Latin: arguō, -uī, -ūtum, -ere `mache klar, weise nach, überführe', argūtus, -a `helltönend'
Russ. meaning: белый, блестящий
References: WP I 82 f
