| 1 | Old French | plaider | Alternative form of plaidier; to plead, offer a... |
| 2 | Old French | plait | agreement; argument; dispute; court |
| 3 | Latin | placitum | opinion, teaching, theory; decree, sentence,... |
| 4 | Latin | placitus | pleasing, agreeable, acceptable, agreed upon |
| 5 | Latin | placeō | — |