sealing wax

a resinous preparation, soft when heated, used for sealing letters, documents, etc.

Origin of sealing wax

Middle English word dating back to 1300–50

The Dutch inscription on sticks of sealing-wax would have been as applicable.

A Trip to Paris in July and August 1792 |Richard Twiss
The cracks will split and will leave a nice edge, which is very useful for sticking in the sealing-wax.

Needlework Economies |Various
The iron rod was coated with sealing-wax and wound with a single layer of copper wire, the turns of wire not touching.

The Story of Great Inventions |Elmer Ellsworth Burns
Why does the rubbing of a stick of sealing-wax cause it to attract small particles of matter?

The Reason Why |Anonymous

Then he put the sealing-wax on it and asked father to seal it with his own seal.

The Lady of the Shroud |Bram Stoker

sealing wax

a hard material made of shellac, turpentine, and pigment that softens when heated. It is used for sealing documents, parcels, letters, etc