The specific string "Töchter rar" often appears in digitized versions of 19th-century academic journals, like the Zeitschrift der Deutschen Morgenländischen Gesellschaft , where the character was misread by scanners as "r" and "u" as part of an "a" , leading to the nonsensical "rar Frau" instead of "zur Frau".
: A king or father offering his daughter to a hero after a quest (e.g., the Old Rinkrank tale).
: While "rar" literally means "rare" or "scarce" in modern German, using it as a typo adds a layer of "rarity" or "uniqueness" to the daughter character that isn't present in the original literal meaning. kind - Wiktionary, the free dictionary
The phrase is likely an OCR (Optical Character Recognition) error for the archaic German phrase "Tochter zur Frau" .
