Elli is the Norse goddess of old age. I must admit I had never heard of her until I picked her at random from my old copy of The Concise Mythological Dictionary by Peerage Books.
It only gives her a brief description, saying that she overcame Thor in a wrestling match. Now that is one tough old lady!
The description of Elli on http://www.godchecker.com/states states:
"THOR cannot believe his luck. He's been challenged to a wrestling match by an ancient giantess. After his last few contests THOR feels he could do with a pushover. After two falls and a submission it is THOR who is on the floor. The Giant Crone is the undisputed champion of all time."
This serves as a valuable lesson not to underestimate old people. We often think of the elderly as unfit, forgetful and out of touch with modern times, but they have a wealth of knowledge and can often give good advice.
They are also not necessarily as helpless as we imagine. And it reminds me of a story I heard from a colleague when I once worked in a shop. They told me about a shoplifter who had been apprehended. The manager shouted "Stop! Thief!" as the criminal ran to the door with something he had purloined. The shoplifter tried to barge past an old lady without thinking. But it turned out the pensioner had a belt in Judo. She grabbed the thief's arm, twisted it, and in an instant he was on the floor.
When I get old, I think I shall set up a little shrine to Elli - even if I am senile and in old folk's home.