| Play | Key Line | Modern Text | Original Text |
| Hamlet | Ham III.iv.25 | How now? A rat? Dead for a ducat, dead! | How now, a Rat? dead for a Ducate, dead. |
| Measure for Measure | MM III.ii.120 | and his use was to put a ducat in her clack-dish. The | and his vse was, to put a ducket in her Clack-dish; the |
| The Merchant of Venice | MV II.iii.4 | But fare thee well, there is a ducat for thee. | But far thee well, there is a ducat for thee, |
| The Merchant of Venice | MV IV.i.85 | If every ducat in six thousand ducats | If euerie Ducat in sixe thousand Ducates |
| The Merchant of Venice | MV IV.i.86 | Were in six parts, and every part a ducat, | Were in sixe parts, and euery part a Ducate, |
| The Two Gentlemen of Verona | TG I.i.136 | not so much as a ducat for delivering your letter; and | not so much as a ducket for deliuering your letter: / And |