| 1 | English | truck | A small wheel or roller, specifically the wheel... |
| 2 | English | truckle | A small wheel; a caster or pulley; A small wheel... |
| 3 | Middle English | trokel | — |
| 4 | Anglo-Norman | trocle | — |
| 5 | Medieval Latin | trochlea | a block, sheaf containing one or more pulleys;... |
| 6 | Ancient Greek | τροχιλία | — |
| 7 | Ancient Greek | -ῐ́ᾱ | {{l|en|-ia}}; "suffix forming abstract feminine... |
| 8 | Proto-Indo-European | -íh₂ | — |
| 9 | Proto-Indo-European | -h₂ | Creates collective nouns, which refer to groups... |