Neurasthenias

Part of speech: noun

Definitions

1. A condition characterized by chronic fatigue, weakness, and various physical symptoms without an identifiable cause
2. A state marked by persistent exhaustion, often accompanied by emotional distress and vague physical complaints
3. A syndrome involving a combination of fatigue, irritability, and somatic symptoms typically linked to psychological factors

Etymology: "Neurasthenias" is simply the plural of "neurasthenia", so it names several cases or kinds of the condition at once. The singular is a compound of two Greek-derived parts: "neur-", meaning "nerve", and "asthenia", a term built from "a-", meaning "not", and "sthenos", meaning "strength". Put together, the literal sense is roughly "nerve-weakness", a lack of nervous strength. The modern term was shaped after the Italian "nevrastenia", which itself follows the same pattern. The structure reads as "nerve" plus "weakness", with "-ia" marking a condition, so the word essentially names a disease of nervous exhaustion. Its surface analysis is transparent, which is why the meaning has stayed close to its parts.