Proper noun
Fayum
A city in Egypt, and the associated region.
History Fayum mummy portrait The word encaustic originates from the Greek word enkaustikos citation which means to burn in, and this element of heat is necessary for a painting to be called encaustic. Source: Internet
The oldest surviving encaustic panel paintings are the Romano-Egyptian Fayum mummy portraits from the 1st Century BC. Source: Internet