congeal

verb4

1. •
   To change from a liquid to solid state, perhaps due to cold; called to freeze in nontechnical usage.
2. •
   To coagulate, make curdled or semi-solid such as gel or jelly.
3. •
   To make rigid or immobile.

   • We must act before opposition to our plans congeals.
4. •
   To become congealed, solidify.