| Dictionary entry | Language | Definition |
|---|---|---|
| *dukn- | Proto-Indo-European (ine-pro) | |
| *doukō | Proto-Italic (itc-pro) | Lead. |
| ducere | Latin (lat) | "be thou led, be thou guided". "to lead, to guide". |
| ductus | Latin (lat) | (Medieval Latin) conveyance (of water); hence, a channel. Generalship. Leadership, leading. |
| ductio | Latin (lat) | Leading (away). |
| doccione | Italian (ita) | Spout (for water); gargoyle. |
| doccia | Italian (ita) | (surgery) plaster cast. Drainpipe. Shower. |