The contraction "eem" (earlier "e'en") began as an intensifier for "isn't" or "doesn't". Lately in Black English, "eem" has itself become a negation, meaning "isn't/doesn't even".
Language Jones episode about an unusual live observation of a Jespersen cycle
https://www.youtube.com/watch?v=-CWUZmZd2-k
@jo Could you translate "leur"?
Knowing English natively and a bit of Spanish from high school, I understood most of the words but got tripped up on "leur". And I'm aware that French has been through enough cases of the #JespersenCycle, such as "pas" literally meaning "step" but meaning "not" after a verb, to know that any unknown word next to the verb could potentially reverse a clauses meaning.
https://en.wikipedia.org/wiki/Jespersen%27s_Cycle
Damian Yerrick