Nicky.
Nancy Crater's nickname for Dr. Leonard McCoy was "Plum".
Yes, a guy named Nick can have a nickname. A nickname is simply an alternative or shortened form of a person's given name.
The word 'nick' is not a short form for 'nickname'; instead, it refers to a small cut.
the q&a wiki
nick
nick
the name Nick came from Nicholas.
NANCY .;
James bukanan
Mommy
you don't create a nickname they give you that nickname
Ms Burton\'s nickname is Nick.