Where does “Vasenaro” come from?

Vasenaro (Esperanto) comes from Dutch wassenaar, from Dutch wassen, from Dutch was, from Middle Dutch was, from Middle Dutch wassen, from Old Dutch wassan, from Proto-West Germanic wahsan, from Proto-Germanic wahsijaną.

Ancestry of “Vasenaro”, step by step

StepLanguageWordMeaning
1DutchwassenaarA crescent, incomplete lunar disk; The same as...
2Dutchwassento wash, to clean; to grow, to rise, to increase,...
3Dutchwaslaundry, clothes that need to be washed, or just...
4Middle Dutchwasfirst/third-person singular past indicative of...
5Middle Dutchwassento grow, to wax; to increase
6Old Dutchwassanto grow, to wax; to rise in level
7Proto-West Germanicwahsanto grow
8Proto-Germanicwahsijanąto grow
9Indo-European*h₂weks-
Every word from Indo-European *h₂weks-Every word from Proto-Germanic wahsijanąEvery word from Proto-West Germanic wahsan