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dysmnesia

American  
[dis-nee-zhuh, -zhee-uh, -zee-uh] / dɪsˈni ʒə, -ʒi ə, -zi ə /

noun

Psychiatry.
  1. an impairment of memory.


Etymology

Origin of dysmnesia

dys- + Greek mnês ( is ) a remembering + -ia