unmelt
Etymology
From un- + melt.
unmelt means to undergo the process of melting in reverse. Lexicurio rates it Rare gem — a strength score of 82 out of 100.
verb
- To undergo the process of melting in reverse.“Eggs break, but do not unbreak; candles melt, but they don't unmelt; memories are of the past, never of the future; […]”