Where does “sfigmograf” come from?

sfigmograf (Polish) comes from Polish -graf, from Ancient Greek γράφω, from Proto-Hellenic grəpʰō, from Proto-Indo-European gerbʰ-, from Proto-Indo-European ger- — to turn, bend, twist, wind; to tie, bind...

sfigmograf (Polish): sphygmograph

Definitions

sphygmograph

Ancestry of “sfigmograf”, step by step

Step	Language	Word	Meaning
1	Polish	-graf	graph
2	Ancient Greek	γράφω	to scratch, cut into; to draw, sketch, paint; to...
3	Proto-Hellenic	grəpʰō	to scratch, cut or carve into
4	Proto-Indo-European	gerbʰ-	to carve
5	Proto-Indo-European	ger-	to turn, bend, twist, wind; to tie, bind...

Every word from Proto-Indo-European ger- →Every word from Proto-Indo-European gerbʰ- →Every word from Proto-Hellenic grəpʰō →