Where does “aaltolevy” come from?

aaltolevy (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.

aaltolevy (Finnish): corrugated plate; waveplate, wave plate

Definitions

corrugated plate; waveplate, wave plate

Ancestry of “aaltolevy”, step by step

aaltolevy traces back through two separate lines of ancestry.

via Finnish aalto

Step	Language	Word	Meaning
1	Finnish	aalto	wave; outbreak
2	Proto-Finnic	alto	wave
3	Proto-Germanic	aldǭ	trough, hollow
4	Proto-Indo-European	Holdʰō(n)	—
5	Proto-Indo-European	Holdʰu-	trough, canoe

via Finnish levy

Step	Language	Word	Meaning
1	Finnish	levy	plate; board; slab
2	Finnish	-u	Forms nouns from verbs. Most common with "e"- and...
3	Proto-Finnic	-u	Forms nouns from adjectives, nouns

Every word from Proto-Indo-European Holdʰu- →Every word from Proto-Indo-European Holdʰō(n) →Every word from Proto-Germanic aldǭ →