It actually means this. Very great or intense.
more than one thing or person
To cut totally off.
Severity is the quality of being severe.
Neurorrhaphy is surgical suture of the ends of a severed nerve.
Corpus callosotomy is the medical term meaning surgical severing of the corpus callosum.
One synonym would be "severed" depending on the meaning.
severed means cut off
a leg that has been cut, or 'severed', in half
A Severed Head was created in 1961.
A Severed Wasp was created in 1982.
Severed Fifth was created in 2008.
The Severed Man was created in 2004.
The Severed Arm was created in 1973.
A Severed Head has 251 pages.
A Severed Wasp has 388 pages.