Where does “Täter-Opfer-Umkehr” come from?

Täter-Opfer-Umkehr (German) comes from German Täter, from German Missetäter, from German missetāt, from Middle High German missetāt, from Old High German mistāt, from Proto-Germanic missadēdiz, from Proto-Germanic dēdiz, from Proto-Indo-European dʰéh₁tis — to do, put, place.

Täter-Opfer-Umkehr (German): victim-blaming; perpetrator-victim reversal (the act or an instance of reversing the roles of perpetrator and victim, often by blaming the victim for the perpetrator's actions)

Definitions

  1. victim-blaming; perpetrator-victim reversal (the act or an instance of reversing the roles of perpetrator and victim, often by blaming the victim for the perpetrator's actions)

Ancestry of “Täter-Opfer-Umkehr”, step by step

Täter-Opfer-Umkehr traces back through 3 separate lines of ancestry.

via German Täter

StepLanguageWordMeaning
1GermanTäterdoer; "evildoer"; delinquent, offender
2GermanMissetätermalefactor
3Germanmissetātiniquity, misdeed evil, sinful, dishonorable deed
4Middle High Germanmissetāt
5Old High Germanmistāt
6Proto-Germanicmissadēdizmisdeed, wrongful act
7Proto-Germanicdēdizdeed, act; doing, able to do, active
8Proto-Indo-Europeandʰéh₁tisact of putting, placement
9Proto-Indo-Europeandʰeh₁-to do, put, place

via German Umkehr

StepLanguageWordMeaning
1GermanUmkehrreversal
2Germanumkehrento turn around
3Middle High Germanummekēren
4Old High Germanumbikēren

via German Opfer

StepLanguageWordMeaning
1GermanOpfersacrifice; victim; wimp
2Middle High Germanopfer
3Old High Germanophar
Every word from Proto-Indo-European dʰeh₁-Every word from Proto-Indo-European dʰéh₁tisEvery word from Proto-Germanic dēdiz