insomnia.
A sleeping disorder that is known for its symptoms of unrest and the inability to sleep.
Meaning & usage
A sleeping disorder that is known for its symptoms of unrest and the inability to sleep.
My mother suffers from insomnia.
Temporary inability to sleep.
Where this word comes from
Borrowed from Latin īnsomnia, from Latin in- (“without”) + somnus (“sleep”, noun) + -ia, equivalent to in- + somn- + -ia.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.