Middle English word rensen comes from Proto-Indo-European *krey-, Proto-Germanic - isōną, and later Proto-Germanic *hrainiz (Clean, not dirty. Innocent. Pure.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *krey- | Proto-Indo-European (ine-pro) | |
| - isōną | Proto-Germanic (gem-pro) | |
| *hrainiz | Proto-Germanic (gem-pro) | Clean, not dirty. Innocent. Pure. |
| *hrainisōną | Proto-Germanic (gem-pro) | To clean, cleanse, purify. |
| *hrinsl | Old Norse (non) | |
| rencen | Middle English (enm) |