| 1 | Latin | circumcisio | circumcision, a cutting around |
| 2 | Latin | circumcido | I cut around, make an incision around, clip,... |
| 3 | Latin | circum- | circum- |
| 4 | Latin | circum | about, around; in a circle, all around, on both... |
| 5 | Latin | circus | a circular line or orbit; circle, ring; a... |
| 6 | Ancient Greek | κρίκος | ring |
| 7 | Proto-Indo-European | (s)ḱer- | dung, manure, filth; manure, dung, filth |