wychert
nounUK /ˈwɪtʃət/ · US /ˈwɪt͡ʃɚt/
Etymology Possibly a compounding of dialectal forms of white + earth.
1
A natural blend of white chalk and clay, traditionally mixed with straw and used to build walls.
- Although only found in a comparatively small area, the use of wychert has attracted a good deal of interest.2009, R. W. Brunskill, Brick and Clay Building in Britain, page 204: