Etymology

semisomnia

S1E1M3I1S1O1M3N1I1A1

Today it means: A chronic state of low-grade exhaustion caused by too little or fitful sleep. Full definition →

Latin semi-
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The story

  1. Latin · derived fromsemi-“half”
  2. English todaysemisomnia

From Latin semi- (“half”) + somnus (“sleep”) + -ia. Compare with insomnia. Coined by British sleep expert Neil Stanley in 2007.

Words from the same roots

Latinsemi- all →

semi-semibreve

Etymology from Wiktionary, CC BY-SA 4.0.