| 1 | Middle English | happen | to come to pass, happen; fortunate, happy |
| 2 | Old English | hæppan | to move accidentally, slip |
| 3 | Old Norse | happa | — |
| 4 | Proto-Germanic | hampijaną | to fit in, be fitting; to occur, happen |
| 5 | Proto-Germanic | -janą | Derives denominatives from nouns and factitives... |
| 6 | Proto-Indo-European | -yéti | Creates intransitive, often deponent,... |
| 7 | Proto-Indo-European | yé- | — |
| 8 | Chichewa | iye | he, she |