Magnificence vs Meg - What's the difference?

As a noun magnificence

is grandeur, brilliance, lavishness or splendor.

grandeur, brilliance, lavishness or splendor

The act of doing what magnificent; the state or quality of being magnificent.

impressiveness

(en proper noun)

A diminutive of the female given names Margaret and Megan.

* 1818 John Keats: Meg Merrilies :

Old Meg was brave as Margaret Queen,

And tall as Amazon:

An old red blanket cloak she wore,

A chip-hat had she on.

* 1985 , World's Fair , Fawcett Crest 1986, ISBN 0449212378, page 208

My mother thought Meg a sweet child, that's what she called her, a sweet child, although she was critical of her name.

'What kind of name is that,' she said.

'It's short for Margaret,' I said. 'But everyone calls her Meg .'

'Well, that's no name for a girl, that's a scullery maid's name. I fault the mother.'