Where does “undersleep” come from?
undersleep (English) comes from English sleep, from Middle English slepen, from Old English slǣpan, from Proto-West Germanic slāpan, from Proto-Germanic slēpaną, from Proto-Indo-European slab- — to be weak, be languid; be weak, limp, languid.
undersleep (English): To sleep too little
Ancestry of “undersleep”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | sleep | To rest in a state of reduced consciousness; To... |
| 2 | Middle English | slepen | to sleep; to become asleep, to cause to sleep; to... |
| 3 | Old English | slǣpan | — |
| 4 | Proto-West Germanic | slāpan | to sleep |
| 5 | Proto-Germanic | slēpaną | to sleep |
| 6 | Proto-Indo-European | slab- | to be weak, be languid; be weak, limp, languid |