User blog comment:Lemedicus/zoldyck meaning or where it derives from???/@comment-2601:602:67F:E050:8DBE:95F9:4590:2C35-20190630053857

A great theory that I have seen can be found here, with a naming convention that applies to all the  zoldyck children https://hunterxhell.tumblr.com/post/131786197807/zoldyck-family-name-meanings