flaunching
/ˈflɔːntʃɪŋ
/noun [mass noun]
The sloping fillet of cement or mortar embedding the base of a chimney pot.General repairs of a lesser nature should be undertaken to brickwork, parapet walling and any leadwork to the main roof together with pointing attention around the chimney pots flaunching.
Origin
Mid 19th century: from flaunch meaning 'flange', (as verb) 'slope towards the top': perhaps based on Old French flanchir 'to bend', from flanc(he) 'flank'.