Where does “cestuy” come from?
cestuy (Middle French) comes from Old French cestui, from Vulgar Latin *ecce istūi, from Latin ecce, from Latin -ce, from Proto-Italic ke, from Indo-European *ḱe.
cestuy (Middle French): this one
Ancestry of “cestuy”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Old French | cestui | the person in question |
| 2 | Vulgar Latin | *ecce istūi | — |
| 3 | Latin | ecce | see!, look!, behold!, points out something with... |
| 4 | Latin | -ce | affixed, usually to demonstratives, forming... |
| 5 | Proto-Italic | ke | here |
| 6 | Indo-European | *ḱe | — |