Polygraphia, or Polygraphice, the art of writing in various unusual manners or ciphers; as also that of deciphering the same. The word is formed from the Greek πολύς, meaning much, and γραφεῖν, scripture, writing.

POLYHYMNIA, in the Pagan mythology, one of the nine muses, thus named from the Greek words πολύς, much, and ὑμνόω, memory. She presided over history, or rather rhetoric, and is represented with a crown of pearls and a white robe; her right hand in action as if haranguing; and holding in her left a caduceus, or sceptre, to show her power.