oneiric

The notion of using the Greek noun oneiros (meaning "dream") to form the English adjective oneiric wasn't dreamed up until the mid-19th century. But back in the late 1500s and early 1600s, linguistic dreamers came up with a few oneiros spin-offs, giving English oneirocriticism, oneirocritical, and oneirocritic (each referring to dream interpreters or interpretation). The surge in oneiros derivatives at that time may have been fueled by the interest then among English-speaking scholars in Oneirocritica, a book about dream interpretation by 2nd-century Greek soothsayer Artemidorus Daldianus. In the 17th century, English speakers also melded Greek oneiros with the combining form ­-mancy ("divination") to create oneiromancy, meaning "divination by means of dreams."