Where does “ulkoilmamuseo” come from?

ulkoilmamuseo (Finnish) comes from Finnish ulkoilma, from Finnish Ilma, from Finnish -ri, from Finnish -ra, from Finnish -i, from Proto-Uralic -j — oblique plural.

Ancestry of “ulkoilmamuseo”, step by step

ulkoilmamuseo traces back through two separate lines of ancestry.

via Finnish ulkoilma

StepLanguageWordMeaning
1Finnishulkoilmaoutdoors; "also" open; open-air
2FinnishIlmaair
3Finnish-riUsed to create names of occupations from nouns or...
4Finnish-raForms nouns or adjectives, mostly from nominal...
5Finnish-iA nominal suffix used in eg. ukko → ukki; Used...
6Proto-Uralic-joblique plural

via Finnish museo

StepLanguageWordMeaning
1Finnishmuseomuseum
2Ancient Greekμουσεῖονa home of music poetry; a museum, a...
3Ancient GreekμοῦσαAlternative letter-case form of Μοῦσᾰ; music,...
Every word from Proto-Uralic -jEvery word from Finnish -iEvery word from Finnish -ri