From New Latin endēmicus, equivalent to Greek éndēm(os), “dwelling in a place, native,” (from en-2, “within, in” + deme, “people, district”+ -ic, suffix forming adjectives). Compare with pandemic and epidemic.
EXAMPLES OF ENDEMIC
The koala is endemic to Australia, found nowhere else in the world.
The genetic trait is endemic to the local population, passed down through generations.
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Here are just a few more adjectives formed from diseases or medical conditions that gained figurative (and negative) meanings: pestiferous, cancerous, bilious, hysterical, choleric, melancholic, paranoid, frenzied, morbid, apoplectic, dyspeptic.
EXAMPLES OF SCROFULOUS
The leader’s scrofulous behavior was evident in her frequent abuses of power and disregard for ethical standards.
The play’s antagonist was portrayed as a scrofulous character, whose corrupt actions ultimately led to his downfall.