Well, you do now.
The usual meaning of miser is, of course, a person who hoards money or possessions with a great and fierce fervour.
It seems that the pleasure of a hoard, whether of beautiful shiny gold or of invisible (and really non-existent) money in the bank, means that a miser can't bear to exchange any of it for anything, whether flowers, respectable clothes, or friends.
At the bottom of being miserly is a desire for control; and at the bottom of that must almost always be a lurking well of fear.
There's something else connected with misers, too: I used to do yearly a door-to-door collection for charity, starting at the rich end of my street and finishing with the shared-house single-roomers.
Not only did the donations get larger as the means of the people reduced, but the connection between the words miser and miserable was absolutely as plain as day.
Have a happy day!
Thing Not To Be Today: miserly. Miser is Latin for wretched.
Why the drill is called a miser no one knows: but then as very few of us have heard of the thing this is perhaps not surprising.