| ossify(verb, close, set, fix, hard) |
| petrify(verb, close, set, fix, hard) |
| harden(verb, close, set, settle, firm) |
| indurate(verb, close, set, fix, settle) |
| fossilise(verb, solidify) |
| calcify(verb, close, set, fix, settle) |
| fix(verb, close, set, settle, firm) |
| cake(verb, close, set, fix, settle) |
| shrivel(verb, contract, shrink, wither, fossilized) |
| age |
| anneal(verb, close, set, fix, settle) |
| antiquate |
| callous(verb, close, set, fix, settle) |
| concrete(verb, close, set, firm, dry) |
| fossilized(verb, close, set, fix, firm) |
| temper(verb, close, set, fix, settle) |
| toughen(verb, close, set, fix, settle) |
| vitrify(verb, close, set, fix, settle) |
| amalgamate(verb, close, set, fix, settle) |
| bake(verb, close, set, fix, settle) |