adverb
even
EE-vun/ˈiːvn/
Adds emphasis to something surprising or extreme.
The tiny mouse frightens the two adults and even the cat.

Etymology
The earlier meaning “exactly, just” seems to have led to the surprising-case use through emphasis on identity: “even you” singles out precisely the person least expected.
In context
Like, for example, if Marburg were to emerge in a crowded urban area undiagnosed even for a few days, the consequences could be catastrophic.
More examples
- She works even on holidays.
- He did not even say goodbye.
- The second climb was even harder.
Forms
even · evener · evenest