Kallikanzarai

This comes from "Kallikak" which is, according to the American Heritage Dictionary: "a fictitious name given to a New Jersey family whose sociological history revealed two lines of descendants, one of respectable citizens, the other of mental deficients and social misfits."  Used by Lovecraft, it refers to possible modern Greeks who are descendants of the intermixing of human beings with fauns, dryads, and satyrs.  This could also be applied to the Innsmouth families which intermixed with the Deep Ones and to the Dunwich Whateley family.

[The Whisperer in Darkness - H.P.L.]