From the Ecclesiastic Late Latin Iacomus, an evolution of Iacobus which is from the Ecclesiastic Iakōbos, a cognate of the Hebrew Yaakov. The name has its root in ya`aqob (supplanting, seizing by the heel). Some say Iacomus arises from an error in the
transcription of manuscripts from the Greek to the Latin by an early monk. Short: Jim. Pet: Jamie, Jimmy.
In the modern day English Jimmy can be referred to someone who cannot help but tell everyone about his new and recent purchases to anyone who will listen (or not). Jimmy's are known for there mild mannered personalities which makes them very good at being used.
It is common to find them around agricultural areas
mucking out stables, tending to chickens or walking their pets.
They have been known to clock watch when with other males due to always feeling as if they should be doing
something else other than enjoying themselves.
Alan: Hey Jimmy what are you up to today,
wanna hang out?
Jimmy: No can do I am afraid I have to muck out the horses and then
walk the dogs. There's just not enough hours
in the day to enjoy myself.
Alan: Classic Jimmy, see you around i suppose then...