Where does “filtraus” come from?

filtraus (Finnish) comes from Finnish filtrata, from French filtrer, from French filtré, from Medieval Latin filtrum, from Frankish filtir, from Frankish *felt, from Proto-Germanic *felt, from Proto-Indo-European peld- — to cover, to wrap; skin, hide, cloth; to fold.

Ancestry of “filtraus”, step by step

filtraus traces back through two separate lines of ancestry.

via Finnish filtrata

StepLanguageWordMeaning
1Finnishfiltratato filter
2Frenchfiltrerto filter; to leak
3Frenchfiltrépast participle of filtrer; filtered
4Medieval Latinfiltrumfelt
5Frankishfiltir
6Frankish*felt
7Proto-Germanic*felt
8Proto-Indo-Europeanpeld-something beaten or compressed; felt
9Proto-Indo-Europeanpelh₂-to approach
10Proto-Indo-Europeanpel-to cover, to wrap; skin, hide, cloth; to fold

via Finnish us

StepLanguageWordMeaning
1Finnishus-ing
Every word from Proto-Indo-European pel-Every word from Proto-Indo-European pelh₂-Every word from Proto-Indo-European peld-
filtraus — Etymology, Origin & Word History | Etymology Explorer