a portrait of a person, esp as a monument or architectural decoration
2.
a crude representation of someone, used as a focus for contempt or ridicule and often hung up or burnt in public (often in the phrases burn or hang in effigy)
[C18: from Latin effigiēs, from effingere to form, portray, from fingere to shape]
1539, from L. effigies "copy or imitation of something, likeness," related to effingere "mold, fashion, portray," from ex- "out" + fingere "to form, shape" (see fiction). The Latin word was regarded as plural and the -s was lopped off by 18c.