From Middle High German hurt (genitive hürde), from Old High German hurt (“wickerwork”). The modern form is generalized from the Middle High German inflected forms. The consonatism -d- is already normal in written Middle High German, thus due to irregular re-voicing. The expected form hürte is, however, quite common in early modern German; -d- prevails, possibly under the re-inforcing influence of Low German (compare Middle Low German hurde).
Hürde f (genitive Hürde, plural Hürden)
- Hürde in Duden online