Where does “Ritch” come from?

Ritch (English) comes from English Richard, from Middle English Rycharde, from Old French Richard, from Medieval Latin Richardus, from Frankish Rīkahard, from Proto-Germanic Rīkaharduz, from Proto-Germanic rīks, from Proto-Celtic rīxs — to straighten, to right oneself; right; just.

Ancestry of “Ritch”, step by step

StepLanguageWordMeaning
1EnglishRichardA turd
2Middle EnglishRycharde
3Old FrenchRichard
4Medieval LatinRichardus
5FrankishRīkahard
6Proto-GermanicRīkaharduzA male given name
7Proto-Germanicrīksking, ruler
8Proto-Celticrīxsking
9Proto-Indo-Europeanh₃rḗǵsking, ruler
10Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just
Every word from Proto-Indo-European h₃reǵ-Every word from Proto-Indo-European h₃rḗǵsEvery word from Proto-Celtic rīxs