a hinged two-leaved tablet used in ancient times for writing on with a stylus.
2.
Usually, diptychs.
a.
a similar tablet of wood or metal containing on one leaf the names of those among the living, and on the other those among the dead, for whom prayers and Masses are said.
b.
the lists of such persons.
c.
the intercession in the course of which these names were introduced.
3.
a pair of pictures or carvings on two panels, usually hinged together.
Origin: 1615–25; < LL diptycha writing tablet with two leaves < Gk díptycha, neut. pl. of díptychos folded together, equiv. to di-di-1+ -ptychos, verbid of ptýssein to fold
A work consisting of two painted or carved panels that are hinged together.
An ancient writing tablet having two leaves hinged together.
A list of names, originally contained on such a tablet, of living and dead Christians for whom special prayers are made during the liturgy in many eastern and western churches.
[Late Latin diptycha, from Greek diptukha, from neuter pl. of diptukhos, folded double : di-, two; see di-1 + ptukhē, fold (from ptussein, ptukh-, to fold).]