Where does “saha-aalto” come from?

saha-aalto (Finnish) comes from Finnish aalto, from Proto-Finnic alto, from Proto-Germanic aldǭ, from Proto-Indo-European Holdʰō(n), from Proto-Indo-European Holdʰu- — trough, canoe.

Ancestry of “saha-aalto”, step by step

saha-aalto traces back through two separate lines of ancestry.

via Finnish aalto

StepLanguageWordMeaning
1Finnishaaltowave; outbreak
2Proto-Finnicaltowave
3Proto-Germanicaldǭtrough, hollow
4Proto-Indo-EuropeanHoldʰō(n)—
5Proto-Indo-EuropeanHoldʰu-trough, canoe

via Finnish saha

StepLanguageWordMeaning
1Finnishsahasaw; sawmill; musical saw
2Old Swedishsaghsaw
3Old Norsesǫgsaw
4Proto-Germanicsagōsaw
5Proto-Indo-Europeansek-to cut, cut off, sever
Every word from Proto-Indo-European Holdʰu- →Every word from Proto-Indo-European Holdʰō(n) →Every word from Proto-Germanic aldǭ →