Definitions for "Expatiate"
To enlarge in discourse or writing; to be copious in argument or discussion; to descant.
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing; "She elaborated on the main ideas in her dissertation"
To expand; to spread; to extend; to diffuse; to broaden.
Keywords:  restraint, range, large
To range at large, or without restraint.