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Vinony

sleeplessness

noun

  1. insomnia, inability to sleep (state of being sleepless)
L327928 on Wikidata ↗

Wiktionary

noun

Etymology: Etymology tree English sleepless Proto-Germanic *-in- Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂ti Proto-Germanic *-ōną Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English sleeplessness From sleepless + -ness.

  1. Lack of sleep; the property of being sleepless; the inability to sleep, insomnia.