/mɛnɪk/ or /mɛnɪk/ is not a recognized word, I will assume you are referring to ‘menace’ or ‘meningic’ which are not found in most dictionaries, however, ‘meningitic’ is related to meningitis, a type of infection, but ‘menic’ could be referring to a ‘meninx’, a type of meningeal layer

Definitions

1. noun

a type of meningeal layer, or a suffix related to meningitis

“The patient was diagnosed with a meningic infection.”