Proto-IE: *pewǝ- (Gr pt-)
Meaning: to peel
Old Indian: pávate, punā́ti, inf., pávitum, ptc. pūtá- `to make clean, clear, cleanse, purify'; pavitár-, pavītár-, pótar-, potár- m. `purifier', pavítra- n. `means of purification, filter, strainer'; pāvana- `purifying', pāvaká- `pure, clear, bright'; pū́ti- f. `purity, purification'
Other Iranian: MPers pavāg, NPers pāk `lauter, rein'
Old Greek: ptǘo-n, jungatt. pteó-n n. `Worfschaufel'
Latin: pūrus, -a `rein; lauter; reinigend; unbefleckt; schlicht; ohne Vorbehalt'; pūrgāre (OLat pūrigāre) `reinigen, sühnen, abführen, entschädigen, ebnen, aufräumen'; putus, -a `rein', ut puta `zum Beispiel', nepus `nōn pūrus' Paul. Fest. 165; putāre `reinigen'
Russ. meaning: чистить, очищать от мякины
