Usage: Entitled vs Titled

This poor word (entitled) has been abused so often, I think the dictionaries are caving and allowing it to be synonymous with titled.

Entitled means to have permission; entitle is to give permission.
Titled means to have a title; title (as a verb) is to give a title.

Right: The book is titled Nevernight.
Wrong: The book is entitled Nevernight.
Right: You are entitled to a heated work environment.
Wrong: You are titled to a heated work environment. (Nobody makes this error.)

Trick to Remember
Title is only for titles, names of things.
The book has a title, and it has been titled Nevernight.

Entitle is to give permission, similar to enable and words like endow, ensure, enshroud, enslave. The government often talks about entitlement programs.