Proto-IE: *kan- / -e-
Meaning: young, new; begin
Old Indian: kanī́na- `young', kanā́, kanyā̀ f. `girl, maid'
Avestan: kainyā-, kainī, kainīn id.
Old Greek: kai̯nó- `neu, neuerfunden, unerwartet'
Latin: recēns, -entis `frisch, jung, neu'
Celtic: Gaul Cintus, Cintugnātos ("Primigenitus"); OIr cenēl `Geschlecht'; cētne, cēt- `erster'; MIr cinim `entspringe', cinis `ortus est', ciniud `Geschlecht, Stamm'; OCymr cenetl ; Cymr cenedl `Geschlecht, Nation'; cyn(t) `erst, vor, eher', cyntaf `der erste'
Russ. meaning: молодой, новый; начинать(ся)
References: WP I 397 f
piet-prnum,piet-meaning,piet-ind,piet-avest,piet-greek,piet-slav,piet-lat,piet-celt,piet-rusmean,piet-refer,