| 1 | Old English | sīþ | journey, movement, trip, point in time, occasion;... |
| 2 | Proto-West Germanic | sinþ | journey, way, path; time, occasion |
| 3 | Proto-Germanic | sinþaz | journey, way, path; time , instance |
| 4 | Proto-Indo-European | sent- | to head for, to go, to travel; to feel |
| 5 | Proto-Indo-European | h₁es- | to be |