Where does “röyhelökaulus” come from?

röyhelökaulus (Finnish) comes from Finnish röyhelö, from Finnish -lö, from Finnish -lä, from Finnish -as, from Proto-Finnic -s, from Proto-Finno-Ugric -s.

röyhelökaulus (Finnish): ruffled collar, frilled collar, ruff collar

Definitions

ruffled collar, frilled collar, ruff collar

Ancestry of “röyhelökaulus”, step by step

röyhelökaulus traces back through two separate lines of ancestry.

via Finnish röyhelö

Step	Language	Word	Meaning
1	Finnish	röyhelö	ruffle, frill, furbelow
2	Finnish	-lö	Front vowel variant of -lo
3	Finnish	-lä	Front vowel variant of -la
4	Finnish	-as	Forms some adjectives; Forms some nouns
5	Proto-Finnic	-s	Forms nouns
6	Proto-Finno-Ugric	-s	—

via Finnish kaulus

Step	Language	Word	Meaning
1	Finnish	kaulus	collar; pronotum
2	Finnish	kaula	neck; distance between a frontrunner and the...
3	Proto-Finnic	kakla	neck
4	Proto-Indo-European	kʷékʷlos	wheel; circle
5	Proto-Indo-European	kʷel-	to turn

Every word from Proto-Finno-Ugric -s →Every word from Finnish -lä →Every word from Finnish -lö →