tisarn.

/tɪˈzɑː/Etymology: < French tisart opening of a furnace, < tiser to poke, stir, etc.: see tease v.2
Glass-making.
rare.
1839 A. Ure 587 The carquaise is heated by means of a fire-place of a square form called a tisar, which extends along its side.
This entry has not yet been fully updated (first published 1912; most recently modified version published online December 2020).