vergraulen

Etymology
20th century, from (“to be scared”, rare or regional). The latter is from earlier, a variant of (also rare) , from , , whence the noun. The form with -ūw- (modern ) probably shows the same Central German development as in,. The change from to  is unremarkable (in fact, many speakers merge these entirely).

Verb

 * 1)  to put off, drive off, scare off cause someone to lose interest, e.g. through unfriendliness
 * 2)  to spoil something for someone make them lose interest in
 * 1)  to spoil something for someone make them lose interest in