| 1 | English | cyclo- | Circle, circular; A cyclic compound; Cyclone |
| 2 | English | cycle | An interval of space or time in which one set of... |
| 3 | Catalan | cicle | cycle |
| 4 | Latin | cyclus | a circle; a cycle, recurring period; a branding... |
| 5 | Ancient Greek | κύκλος | circle, ring; Any circular object, such as a... |
| 6 | Proto-Indo-European | kʷékʷlos | wheel; circle |
| 7 | Proto-Indo-European | kʷel- | to turn |