A small cote or shelter; a diminutive farm building or animal shelter, often used for birds or small livestock.
From cote (Old English 'cote' meaning shelter or hut) plus the diminutive suffix '-rell' or '-el', indicating something small. The word is primarily British and somewhat archaic.
Medieval farms had these whole ecosystems of tiny specialized buildings—a coterell might house just pigeons or chickens while other buildings housed different animals, all fitting together like a 3D puzzle.
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