Definition of "Eustace"

Eustace

/ˈjuːˌstɪs/

proper noun
1. A male given name from Ancient Greek.
  Quotations
  His name unfortunately was Eustace Scrubb, but he wasn’t a bad sort.
  1953, C. S. Lewis, chapter 1, in The Silver Chair
  ‘The boy’s Eustace, my lord’, hooted the Owl as loud as it could. ‘Useless?’ said the Dwarf irritably. ‘I dare say he is. Is that any reason for bringing him to court? Hey?’ ‘Not useless’, said the Owl. ‘EUSTACE’. ‘Used to it, is he? I don’t know what you’re talking about, I’m sure. […]
  1953, C. S. Lewis, chapter 3, in The Silver Chair
2. A surname originating as a patronymic.