korrigans

And it seldom happened that they did not have one "given" them; for nearly every old Breton grandame has, at least once in her life, seen the "korrigans" dance by moonlight on the heather.

The Phantom of the Opera 1911

This also goes for Otherworlders: for instance, when I was creating names and bits of language for the korrigans, fairy-like beings found in Breton folklore, for my novel, ‘In Hollow Lands’, I used Breton itself for them, but a chopped-up, strangely inverted Breton, which expresses the Otherworlders’ strange nature, whereas the human characters used real Breton.

Writer Unboxed » Blog Archive » Creating imaginary languages and words in fantasy for children and young people 2009