Proto-IE: *nert-
Meaning: to feel violent emotions
Old Indian: nŕ̥tyati `to dance'; nŕ̥t-, nr̥tí- f. `dancing', nr̥tú- `dancing, dancer'; naṭati `to dance'
Old Greek: nóso-s, hom., ion. nọ̄̂so-s f. `Krankheit; Übel, Not'
Russ. meaning: испытывать сильные эмоции
References: WP II 332 f (differently in Pok.)