Where does “unslept” come from?

unslept (English) comes from English slept — simple past tense and past participle of sleep.

unslept (English): Not having been slept

Definitions

  1. Not having been slept

Ancestry of “unslept”, step by step

unslept traces back through two separate lines of ancestry.

via English slept

StepLanguageWordMeaning
1Englishsleptsimple past tense and past participle of sleep

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from English slept