Where does “maannousu” come from?

maannousu (Finnish) comes from Finnish mää, from Finnish -inen, from Finnish -uus, from Proto-Finnic -uc — -ness, -hood.

Ancestry of “maannousu”, step by step

maannousu traces back through two separate lines of ancestry.

via Finnish mää

StepLanguageWordMeaning
1Finnishmääbaa; I
2Finnish-inen-like, -ous, -y; -en; Creates adjectives from...
3Finnish-uusForms nouns from adjectives, expressing a quality
4Proto-Finnic-uc-ness, -hood

via Finnish nousu

StepLanguageWordMeaning
1Finnishnousurise; ascent; thread pitch, pitch
2Finnish-uForms nouns from verbs. Most common with "e"- and...
3Proto-Finnic-uForms nouns from adjectives, nouns
Every word from Proto-Finnic -ucEvery word from Finnish -inenEvery word from Finnish -uus