$ help command | grep -i -- -v
-v print a description of COMMAND similar to the `type' builtin
-V print a more verbose description of each COMMAND
$ command -v cat
/bin/cat
$ type cat
cat is /bin/cat
$ command -V cat
cat is /bin/cat
So it turns out -V is like type, not -v!
Also when you say "description" one expects something like:
$ man cat | col -b | grep -A 1 -i description
DESCRIPTION
Concatenate FILE(s) to standard output.
