winkelhaec
From User talk:Rua
The MNW actually includes a 15th century mention (Teutonista), the same source cited by Van Veen & Van der Sijs, so there is basis for a Middle Dutch stage.
Given that we already have hake, should we be also using winkelhake? The form without schwa is a late form, and not all descendants of Middle Dutch actually lost the schwa. West Flemish and Zeelandic still have all the schwas, for example, including presumably in this word.
Fine with me, it's more consistent. The MNW also uses the normalisation hake for the simplex.