Hyphens, En Dashes, Em Dashes

Q. If you have to call someone “Jeff-bear,” is the hyphen appropriate, or would “Jeffbear” suffice? The new Manual doesn’t say.

A. I’m sorry, but when we got to the term “Jeff-bear,” the Hyphenation Committee couldn’t agree and things started to get nasty, so we left it out. I’m afraid you’re on your own.

[This answer relies on the 17th edition of CMOS (2017) unless otherwise noted.]