Etymology

neurasthenia

N1E1U1R1A1S1T1H4E1N1I1A1

Today it means: An ill-defined medical condition characterized by lassitude, fatigue, headache, and irritability, associated chiefly with emotional disturbance. Full definition →

Italian nevrastenia
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The story

  1. Italian · derived fromnevrastenia
  2. English todayneurasthenia

From neur- + asthenia, after Italian nevrastenia. By surface analysis, neur- (“nerve”) + a- (“not”) + sthen- (“strength”) + -ia (“disease”).

Etymology from Wiktionary, CC BY-SA 4.0.