Proto-IE: *neigʷ-
Meaning: to wash
Old Indian: nenekti, niṅkte, aor. anijam, anāikṣīt, pass. nijyate, ptc. niktá- `to wash, cleanse'
Avestan: intens. naēnižaiti `wäscht ab, spült ab'
Old Greek: nízdō, -omai̯; níptō, -omai̯, aor. nípsai̯, -asthai̯, p. niphthē̂nai̯, ft. p. niphḗsomai̯, pf. m. nénimmai̯, néniptai̯ `(sich) waschen, baden'; níptro-n n. `Waschwasser', kata-níptǟ-s m. `Wäscher', niptḗr m. `Waschbecker', nímma n. `Waschwasser', nípsi-s f. `das Waschen'; á-nipto- `ungewaschen' Hom.+, düs-ék-nüpto- Plat.
Celtic: *nigʷi̯eti, *nikʷto- etc. > Ir nigid `wäscht', ft. -ninus; necht `rein'
Russ. meaning: мыть
