preposterate

Verb

1. To reverse or turn upside down.

   Synonyms: flip over invert

2. To pervert or disgrace.
   • I never saw thinge done by you which preposterated or perverted the good judgment that all the world esteemeth to shine in you.

   Synonyms: corrupt sophisticate warp adulterate debauch demoralize detort file immoralize lead astray pervert pollute preposterate seduce suborn subvert tamper unmoralize vitiate