Where does “Siestarjoki” come from?

Siestarjoki (Finnish) comes from Ido siestar, from Ido siesto, from Spanish siesta, from Old Spanish siesta, from Latin sexta, from Latin Sextus, from Latin sex, from Proto-Italic seks — six.

Siestarjoki (Finnish): Sestroretsk town in Russia

Definitions

  1. Sestroretsk town in Russia

Ancestry of “Siestarjoki”, step by step

Siestarjoki traces back through two separate lines of ancestry.

via Ido siestar

StepLanguageWordMeaning
1Idosiestarto sleep in the afternoon
2Idosiestosiesta, midday or afternoon nap
3Spanishsiestasiesta, nap
4Old Spanishsiestanoon; midday
5LatinsextaNoon, reckoned as the sixth hour of daylight;...
6LatinSextusparticularly popular in Gaul. (Occasionally also found as a cognomen.) In particular
7Latinsexsix; 6
8Proto-Italicsekssix
9Proto-Indo-Europeanswéḱssix

via Finnish joki

StepLanguageWordMeaning
1Finnishjokiriver
2Finnishsokeusblindness
3Finnishsokeablind
4Proto-Finnicsokedablind
Every word from Proto-Indo-European swéḱs