Where does “laatuunkäyvä” come from?

laatuunkäyvä (Finnish) comes from Finnish laatu, from Russian лад, from Proto-Slavic ladъ — harmony, order.

Ancestry of “laatuunkäyvä”, step by step

laatuunkäyvä traces back through two separate lines of ancestry.

via Finnish laatu

StepLanguageWordMeaning
1Finnishlaatuquality; sort, kind
2Russianладharmony, concord; manner, way; mode; fret
3Proto-Slavicladъharmony, order

via Finnish käyvä

StepLanguageWordMeaning
1FinnishkäyväPresent active participle of käydä
2Finnish-stiForms adverbs describing how many times something...
3Proto-Finnic-stikForms adverbs of manner from adjectives

Words derived from “laatuunkäyvä

Every word from Proto-Slavic ladъEvery word from Russian ладEvery word from Finnish laatu