Where does “tiivistekumi” come from?

tiivistekumi (Finnish) comes from Finnish tiiviste, from Finnish tiivistää, from Finnish tiivis, from Proto-Germanic stīfaz, from Proto-Indo-European steypós.

tiivistekumi (Finnish): rubber gasket

Definitions

rubber gasket

Ancestry of “tiivistekumi”, step by step

tiivistekumi traces back through two separate lines of ancestry.

via Finnish tiiviste

Step	Language	Word	Meaning
1	Finnish	tiiviste	seal, gasket; concentrate; weatherstrip
2	Finnish	tiivistää	to compact, compress
3	Finnish	tiivis	tight, compact, dense, solid; concise
4	Proto-Germanic	stīfaz	stiff, rigid
5	Proto-Indo-European	steypós	—

via Finnish kumi

Step	Language	Word	Meaning
1	Finnish	kumi	rubber; eraser; condom
2	German	Gummi	rubber, gum; rubber band, elastic band; condom,...
3	Latin	cummi	Alternative form of cummis
4	Ancient Greek	κόμμι	gum, obtained from babul
5	Egyptian	qmy	anointing oil

Every word from Proto-Indo-European steypós →