Hi Antonio,
What form of even were you enquiring about? (Adjective/adverb/verb)
'Until' is a preposition/conjunction that is used to show something up to a point in time.
I ate until I was full.
'Even' as an adjective is equal in value/number/size.
The bread was cut in even slices.
'Even' as an adverb it is used to place emphasis.
She even had a guitar.
Hope this helps, if you have any more questions, don't hesitate to contact me.