| petrify(verb, close, set, hard) |
| stiffen(verb, calm, close, set) |
| fossilize(verb, close, set, hard) |
| congeal(verb, close, set, hard) |
| indurate(verb, adjective, close, set) |
| thicken(verb, close, set, hard) |
| calcify(verb, close, set, settle) |
| temper(verb, close, set, settle) |
| toughen(verb, close, set, settle) |
| vitrify(verb, close, set, settle) |
| freeze(verb, calm, close, set) |
| solidify(verb, close, set, hard) |
| anneal(verb, close, set, settle) |
| callous(verb, adjective, close, set) |
| firm(verb, calm, close, set) |
| amalgamate(verb, close, set, settle) |
| bake(verb, close, set, settle) |
| brace(verb, calm, close, set) |
| buttress(verb, calm, close, set) |
| cake(verb, close, set, settle) |