Where does “suuntavilkku” come from?

suuntavilkku (Finnish) comes from Finnish vilkku, from Finnish -u, from Proto-Finnic -u — Forms nouns from adjectives, nouns.

suuntavilkku (Finnish): An indicator, turn signal, trafficator blinking light that indicates the direction that a vehicle is about to turn

Definitions

  1. An indicator, turn signal, trafficator blinking light that indicates the direction that a vehicle is about to turn

Ancestry of “suuntavilkku”, step by step

suuntavilkku traces back through two separate lines of ancestry.

via Finnish vilkku

StepLanguageWordMeaning
1Finnishvilkkublinker; turn signal
2Finnish-uForms nouns from verbs. Most common with "e"- and...
3Proto-Finnic-uForms nouns from adjectives, nouns

via Finnish suunta

StepLanguageWordMeaning
1Finnishsuuntadirection; hand; path
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish vilkku →