| Original | Back-Formation | % Correct |
|---|---|---|
| Beggar | Beg | 100%
|
| Babysitter | Babysit | 94%
|
| Donation | Donate | 94%
|
| Edition/Editor | Edit | 94%
|
| Gloomy | Gloom | 94%
|
| Diagnosis | Diagnose | 91%
|
| Insertion | Insert | 91%
|
| Bulldozer | Bulldoze | 89%
|
| Projection | Project | 89%
|
| Emotion | Emote | 86%
|
| Housekeeper | Housekeep | 86%
|
| Typewriter | Typewrite | 86%
|
| Enthusiasm | Enthuse | 69%
|
| Liaison | Liaise | 54%
|
| Opinion | Opine | 54%
|