Where does “pyörrekerros” come from?

pyörrekerros (Finnish) comes from Finnish pyörre, from Finnish pyörtää, from Finnish Sini, from Latin sinus, from Arabic جَيْب, from Sanskrit ज्या, from Sanskrit जीव, from Proto-Indo-Aryan ȷ́iHwás — to live.

Ancestry of “pyörrekerros”, step by step

pyörrekerros traces back through two separate lines of ancestry.

via Finnish pyörre

StepLanguageWordMeaning
1Finnishpyörrevortex, whirl, swirl
2Finnishpyörtääto turn around, return; to curve, bend, turn; to...
3FinnishSiniblue
4Latinsinusa hollow, cavity; curve, fold, winding; gulf, bay
5Arabicجَيْبpocket; opening in a garment; pocket; bosom, fold...
6Sanskritज्याbow-string, tendon; sine
7Sanskritजीवalive, living; life, existence; any living being,...
8Proto-Indo-Aryanȷ́iHwás
9Proto-Indo-IranianǰiHwásalive
10Proto-Indo-Europeangʷih₃wósalive, living
11Proto-Indo-Europeangʷeih₃w-to live

via Finnish kerros

StepLanguageWordMeaning
1Finnishkerrosfloor, storey; layer; Second-person singular...
2FinnishkerrataTo repeat or reread
3Finnishkertatime, occasion; time; times; also once, when the...
4Proto-Finnickertatime
5Proto-Indo-Europeankert-times; to weave, twist together; time
6Proto-Turkic*keŕ-to travel, tour
Every word from Proto-Indo-European gʷeih₃w-Every word from Proto-Indo-European gʷih₃wósEvery word from Proto-Indo-Iranian ǰiHwás