Where does “Steigereiland” come from?

Steigereiland (Dutch) comes from Dutch eiland, from Middle Dutch eilant, from Old Dutch eilant, from Old Frisian eiland, from Proto-West Germanic *auwjuland, from Proto-Germanic awjōlandą, from Proto-Germanic awjō, from Proto-Germanic agwjō — water.

Ancestry of “Steigereiland”, step by step

Steigereiland traces back through two separate lines of ancestry.

via Dutch eiland

Step	Language	Word	Meaning
1	Dutch	eiland	island
2	Middle Dutch	eilant	—
3	Old Dutch	eilant	—
4	Old Frisian	eiland	—
5	Proto-West Germanic	*auwjuland	—
6	Proto-Germanic	awjōlandą	island
7	Proto-Germanic	awjō	floodplain; meadow; island
8	Proto-Germanic	agwjō	—
9	Proto-Indo-European	h₂ékʷeh₂	water

via Dutch steiger

Step	Language	Word	Meaning
1	Dutch	steiger	a jetty; a small, often wooden landing for boats...
2	Middle Dutch	steiger	—
3	Old Dutch	steiger	—
4	Proto-Germanic	staigriz	scaffold, platform; stairs
5	Proto-Indo-European	steyǵʰ-	to go

Every word from Proto-Indo-European h₂ékʷeh₂ →