parge
/ˈpɑːrdʒ/ or /ˈpɑːrdʒ/; British English: /ˈpɑːrdʒ/Definitions
1. verb
to coat or cover (a surface, typically of stone or brick) with a layer of water to prepare it for plastering or pointing.
“The mason had to parge the wall before applying the new mortar.”
2. noun
a surface coated with a layer of water to prepare it for plastering or pointing.
“The parge had to be left to dry for several hours before the new plaster could be applied.”