As another anon mentioned never saw that mentioned anywhere this is sauceless to boot.
Roth is an English, German, or Jewish origin surname. There are seven theories:
1 The spilling of blood from the warrior class of ancient Germanic soldiers;
2 Ethnic name for an Anglo-Saxon, derived from rot (meaning "red" before the 7th century), referencing red-haired people;
3 Topographical name, derived from rod (meaning "wood"), meaning a dweller in such a location;
4 Derivative from hroth (from the Proto-Germanic word for "fame"; related to hrod);
5 Local name for 18th-century Ashkenazi refugees to Germany;
6 Derivative from roe in the ancient Danish language to signify (of) a king;
7 Of the red colour of clay, as in pottery (German).
https://en.wikipedia.org/wiki/Roth_(surname)
Although the urban dictionary had a hilarious definition
https://www.urbandictionary.com/define.php?term=roth