Latin word testis comes from Proto-Indo-European *stísteh₂ti (To be standing up, to be getting up.), Proto-Indo-European *tisres
| Dictionary entry | Language | Definition |
|---|---|---|
| *stísteh₂ti | Proto-Indo-European (ine-pro) | To be standing up, to be getting up. |
| *tisres | Proto-Indo-European (ine-pro) | |
| *tristh₂s | Proto-Indo-European (ine-pro) | |
| testis | Latin (lat) | One who testifies or attests. Witness. |