sillare Save DMLBS sillare [sillum+-are], to furnish with a sill or sills. 1331 maeremium ad dictam stabulam sulland’ IMisc 114 (9); 1372 in j carpentario conducto ad sulland' [et] stoddand' omnes parietes bercarie MinAc 1156/13 m. 2.