It's a reference to alchemy written in Latin, not literally "coagulate".
"Solve coagula" "SOLVE COAGULA": breaking down and bringing back together.
An 1856 depiction of the Sabbatic Goat from Dogme et Rituel de la Haute Magie by Éliphas Lévi The arms bear the Latin words SOLVE (dissolve) and COAGULA (coagulate).