Nobody owns the copyright of a single word. Perhaps you mean trademark.
Word Music.
Individual words do not qualify for copyright protection, and there is no trademark registered with that word.
the coca cola company owns the copyright
A minor owns the copyright on any works they create.
Universal.
The BBC controls all Doctor Who imagery, and has indeed registered a trademark on the word "dalek."
Paramount.
Rankin/Bass.
Rondor Music.
There are 24 different copyright-protected items by that name.
The phrase "copyright obtained" doesn't give any indication of who copyright might be assigned to.
You can't. It is a right that the writer owns. You can offer to buy the copyright.