noun

insomnia

insomnia

He suffers from chronic insomnia.

He suffers from chronic insomnia.

Stress can cause insomnia.

Stress can cause insomnia.

((insomnia)) the condition of being unable to sleep He suffers from chronic insomnia.

Synonyms: sleeplessness

From Latin 'in-' (not) + 'somnus' (sleep), literally meaning 'no sleep'.

Break it down: 'in-' means 'not' and 'somn' relates to sleep. So, 'not sleep'.

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