| Solution | Length | |
|---|---|---|
| 3 letters | ||
| rah | 3 | |
| ego | 3 | |
| 4 letters | ||
| rain | 4 | |
| shot | 4 | |
| rahs | 4 | |
| urge | 4 | |
| seed | 4 | |
| stir | 4 | |
| spur | 4 | |
| ican | 4 | |
| 5 letters | ||
| drive | 5 | |
| 6 letters | ||
| reason | 6 | |
| spirit | 6 | |
| intent | 6 | |
| unrest | 6 | |
| 7 letters | ||
| running | 7 | |
| purpose | 7 | |
| impetus | 7 | |
| 8 letters | ||
| velocity | 8 | |
| stimulus | 8 | |
| 9 letters | ||
| readiness | 9 | |
| QUICKNESS | 9 | |
| incentive | 9 | |
| stimulant | 9 | |
| prompting | 9 | |
| 10 letters | ||
| getupandgo | 10 | |
| PROPELLANT | 10 | |
| 11 letters | ||
| inspiration | 11 | |
| stimulation | 11 | |
| WILLINGNESS | 11 | |
| provocative | 11 | |
| PROVOCATION | 11 | |
| 12 letters | ||
| RESTLESSNESS | 12 | |
| 13 letters | ||
| encouragement | 13 | |
| get-up-and-go | 13 | |
| 14 letters | ||
| susceptibility | 14 | |