Learn how to say Tesserae correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word tessera:
noun (plural tesserae /-riː/)
a small block of stone, tile, glass, or other material used in the construction of a mosaic:
Roman remains including tesserae have been found
(in ancient Greece and Rome) a small tablet of wood or bone used as a token.
mid 17th century: via Latin from Greek, neuter of tesseres, variant of tessares ‘four’