Where does “spuugzat” come from?

spuugzat (Dutch) comes from Dutch spuug, from Dutch spugen, from Middle High German spīwen, from Old High German spīwan, from Proto-West Germanic *spīwan, from Proto-Germanic spīwaną, from Proto-Indo-European (s)ptyēw- — to spit, vomit.

Ancestry of “spuugzat”, step by step

spuugzat traces back through two separate lines of ancestry.

via Dutch spuug

Step	Language	Word	Meaning
1	Dutch	spuug	spit, spawl
2	Dutch	spugen	to spit; to vomit
3	Middle High German	spīwen	—
4	Old High German	spīwan	to spew
5	Proto-West Germanic	*spīwan	to spew, spit
6	Proto-Germanic	spīwaną	to spew, to spit
7	Proto-Indo-European	(s)ptyēw-	to spit, vomit

via Dutch zat

Step	Language	Word	Meaning
1	Dutch	zat	sated, full, especially with alcoholic beverage,...
2	Middle Dutch	sat	—
3	Old Dutch	sāt	satiated
4	Proto-West Germanic	*sād	—
5	Proto-Germanic	sēdiz	seed
6	Proto-Indo-European	seh₁-	to impress, insert; to sow, to plant; long,...

Every word from Proto-Indo-European (s)ptyēw- →Every word from Proto-Germanic spīwaną →Every word from Proto-West Germanic *spīwan →