Where does “levyseppähitsaaja” come from?

levyseppähitsaaja (Finnish) comes from Finnish hitsaaja, from Finnish jä, from Proto-Finno-Ugric *ja, from Proto-Germanic jahw, from Proto-Germanic -hw, from Proto-Germanic -hwe, from Proto-Indo-European -kʷe — and; Forms distributives from interrogatives.

levyseppähitsaaja (Finnish): sheet metal worker-welder job title or the title of someone who has completed an undergraduate degree in machining and metal working

Definitions

sheet metal worker-welder job title or the title of someone who has completed an undergraduate degree in machining and metal working

Ancestry of “levyseppähitsaaja”, step by step

levyseppähitsaaja traces back through two separate lines of ancestry.

via Finnish hitsaaja

Step	Language	Word	Meaning
1	Finnish	hitsaaja	welder
2	Finnish	jä	ice
3	Proto-Finno-Ugric	*ja	—
4	Proto-Germanic	jahw	and, also
5	Proto-Germanic	-hw	and; Forms distributives from interrogatives
6	Proto-Germanic	-hwe	—
7	Proto-Indo-European	-kʷe	and; Forms distributives from interrogatives

via Finnish levyseppä

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

Every word from Proto-Indo-European -kʷe →Every word from Proto-Germanic -hw →Every word from Proto-Germanic jahw →