cerograph

From cero- +‎ -graph.

cerograph (plural cerographs)

1. A writing on wax.

• Edward H[enry] Knight (1877) “Cerograph”, in Knight’s American Mechanical Dictionary. […], volumes I (A–GAS), New York, N.Y.: Hurd and Houghton […], →OCLC.
• “cerograph”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.