Latin word ducem comes from Proto-Indo-European *deh₁g-, and later Proto-Germanic *tēkaną (To grasp. To hold. To touch.)
| Dictionary entry | Language | Definition |
|---|---|---|
| *deh₁g- | Proto-Indo-European (ine-pro) | |
| *tēkaną | Proto-Germanic (gem-pro) | To grasp. To hold. To touch. |
| *dukn- | Proto-Indo-European (ine-pro) | |
| *déwketi | Proto-Indo-European (ine-pro) | |
| *dewk-s | Proto-Indo-European (ine-pro) | |
| *déwkti | Proto-Indo-European (ine-pro) | To lead. To pull, to draw. |
| *doukō | Proto-Italic (itc-pro) | Lead. |
| duco | Latin (lat) | I draw, pull. I lead, guide. I prolong. I think, consider. |
| ducem | Latin (lat) |