Where does “kattoluukku” come from?

kattoluukku (Finnish) comes from Finnish katto, from Finnish kattaa, from Proto-Finnic kattadak, from Proto-Finnic kanci, from Czech -í, from Old Czech -í, from Proto-Slavic -jь, from Proto-Indo-European yós — fluidity, slime, poison; poison; poison; slime;...

kattoluukku (Finnish): roof hatch, scuttle hatch that provides access to the roof from the interior of a building

Definitions

  1. roof hatch, scuttle hatch that provides access to the roof from the interior of a building

Ancestry of “kattoluukku”, step by step

kattoluukku traces back through two separate lines of ancestry.

via Finnish katto

StepLanguageWordMeaning
1Finnishkattoceiling; roof
2Finnishkattaato roof; to cover; to set, lay
3Proto-Finnickattadakto cover; to roof
4Proto-Finnickancicover, lid
5CzechForming attributive adjectives from nouns,...
6Old Czechforming attributive adjectives from nouns, especially animals
7Proto-Slavic-jьAdjectival inherited from the Caland roots,...
8Proto-Indo-Europeanyósthat, who, which
9Proto-Finnicwiša
10Proto-Indo-Iranianwišáspoison, venom
11Proto-Indo-Europeanwisósfluidity, slime, poison; poison; poison; slime;...

via Finnish luukku

StepLanguageWordMeaning
1Finnishluukkuhatch; residence
2Swedishluckaa gap, a hole, an open slot, a small empty room;...
3Slovaklúkameadow
4Proto-Slaviclǫkalow-lying meadow, water-meadow
5Proto-Balto-Slaviclankāˀ
6Proto-Indo-Europeanlengʷʰ-light, agile, nimble; light, not heavy, agile,...
Every word from Proto-Indo-European wisósEvery word from Czech Every word from Proto-Indo-Iranian wišás