paedonymic
/pɛˈdɒnɪmɪk/ or /pɛˈdɔːnɪmɪk/Definitions
1. adjective
relating to or derived from a person’s name or an attribute of their name
“The study of paedonymic patterns in ancient cultures revealed surprising insights into social structures.”
2. noun
the origin or derivation of a person’s name or an attribute of their name
“The paedonymic study of the royal family highlighted their ancestral ties to European nobility.”