different between dorsar vs dorsad

English

dorsar (plural dorsars)

A piece of tapestry intended to hang over the back of a chair.
- 1896, William Morris, The Well at the World's End, volume 1, Ballantine Books (1970 pb edition), page 94
  He laughed gaily and went into the hall with her, and now was it well dight with bankers and dorsars of goodly figured cloth, […]

From Latin dorsum (“back”) + ad (“to”).

dorsad (comparative more dorsad, superlative most dorsad)

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