| Solution | Length | |
|---|---|---|
| 4 letters | ||
| root | 4 | |
| prop | 4 | |
| stay | 4 | |
| 5 letters | ||
| steel | 5 | |
| shore | 5 | |
| prove | 5 | |
| 6 letters | ||
| set on | 6 | |
| ratify | 6 | |
| temper | 6 | |
| verify | 6 | |
| uphold | 6 | |
| 7 letters | ||
| probate | 7 | |
| stiffen | 7 | |
| support | 7 | |
| toughen | 7 | |
| refresh | 7 | |
| warrant | 7 | |
| sustain | 7 | |
| 8 letters | ||
| underlie | 8 | |
| shoulder | 8 | |
| shore up | 8 | |
| validate | 8 | |
| 9 letters | ||
| SUBSIDIZE | 9 | |
| reinforce | 9 | |
| 10 letters | ||
| strengthen | 10 | |
| 12 letters | ||
| substantiate | 12 | |