Middle English word pur comes from Proto-Indo-European *per (Around. Through.), Proto-Indo-European *bʰowHéyeti, Proto-Indo-European *pōw-, Proto-Indo-European *pró (Toward, leading to.), Proto-Indo-European *pu-
| Dictionary entry | Language | Definition |
|---|---|---|
| *per | Proto-Indo-European (ine-pro) | Around. Through. |
| *bʰowHéyeti | Proto-Indo-European (ine-pro) | |
| *pōw- | Proto-Indo-European (ine-pro) | |
| *pró | Proto-Indo-European (ine-pro) | Toward, leading to. |
| *pu- | Proto-Indo-European (ine-pro) | |
| *per | Proto-Italic (itc-pro) | |
| *prō | Proto-Italic (itc-pro) | |
| *pr̥- | Proto-Indo-European (ine-pro) | |
| per | Latin (lat) | (with accusative) during. (with accusative) through, by means of. |
| *por | Latin (lat) | (Vulgar Latin) for. |
| pur | Old French (fro) | Pure. |
| pur | French (fra) | Pure (undiluted). Pure (unspoilt). |
| purus | Latin (lat) | Clean; pure. Clear, limpid. |
| pur | Middle English (enm) |