French word poisson comes from Latin poto (I drink (liquor).), Proto-Indo-European *peysḱ-, Latin potis (Able, capable, possible.), French -on
| Dictionary entry | Language | Definition |
|---|---|---|
| poto | Latin (lat) | I drink (liquor). |
| *peysḱ- | Proto-Indo-European (ine-pro) | |
| potis | Latin (lat) | Able, capable, possible. |
| -on | French (fra) | Forming diminutives of things, including some animals.. Indicating origin or occupation. (physics, and, biology) -on. |
| piscis | Latin (lat) | A fish. |
| potionis | Latin (lat) | |
| pis | Old French (fro) | |
| puison | Old French (fro) | |
| poisson | French (fra) | Fish (marine animal). |