Where does “sincere” come from?
sincere (Esperanto) comes from Esperanto sincera, from English sincere, from Middle French sincere, from Latin sincērus, from Proto-Italic senkairos, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.
sincere (Esperanto): sincerely
Ancestry of “sincere”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Esperanto | sincera | sincere |
| 2 | English | sincere | Genuine; meaning what one says or does;... |
| 3 | Middle French | sincere | sincere |
| 4 | Latin | sincērus | — |
| 5 | Proto-Italic | senkairos | — |
| 6 | Proto-Indo-European | ḱer- | to grow, to make grow, to nourish; to plait,... |
| 7 | Proto-Indo-European | kr̥- | to turn, to bend |
| 8 | Proto-Indo-European | ker- | army |