| 1 | English | problem | A difficulty that has to be resolved or dealt... |
| 2 | Middle English | probleme | A conundrum; a puzzling circumstance; A research... |
| 3 | Middle French | probleme | problem |
| 4 | Latin | problēma | — |
| 5 | Ancient Greek | πρόβλημα | anything thrown forward or projecting; anything... |
| 6 | Ancient Greek | προβάλλω | to throw or lay before, throw to; to put forward... |
| 7 | Ancient Greek | πρό- | in front of; before |
| 8 | Ancient Greek | πρό | before; before, in front, forth, forward; before,... |
| 9 | Proto-Indo-European | pró | toward, leading to |
| 10 | Proto-Indo-European | per- | before, in front; first; to go through |
| 11 | Proto-Indo-European | pr̥tós | passed , crossed |