familiar

The witch’s familiar was a black cat.

[A] friend of mine, that finding a Receipt in Braſsivola, would needs take Hellebor in ſubſtance, & try it on his own perſon; but had not ſome of his familiars come to viſite him by chance, he had by his indiſcretion hazarded himſelfe; many ſuch I have obſerued.