| 1 | English | ken | To give birth, conceive, beget, be born; to... |
| 2 | Middle English | kenning | — |
| 3 | Middle English | kennen | to beget, conceive ; to give birth to; to make... |
| 4 | Old English | cennan | to make known, declare; to produce, bring forth,... |
| 5 | Proto-West Germanic | kannjan | to beget, bring forth |
| 6 | Proto-Germanic | kanjaną | to beget, bring forth |
| 7 | Proto-Indo-European | ǵonh₁éyeti | — |
| 8 | Proto-Indo-European | ǵenh₁- | to produce, to beget, to give birth |