Arkan sonney is a Manx expression I came across today that means hedgehog, or literally “happy sucking pig”. Arkan is a diminutive form of ark (piglet), and sonney means ‘affluent, lucky, fortunate, happy’, and sounds a bit like sonic, hence the little of this post.
Another Manx word for hedgehog is graynoge, which is related to the Irish and Scottish Gaelic words for hedgehog: gráinneog and gràineag. The root of these words is gráin (abhorrence, disgust), so they mean ‘the abhorrent/disgusting one’. The Welsh word for hedgehog, draenog, possibly comes from the same root.
According to Wikipedia, arkan sonney, means literally ‘lucky urchin’ or ‘plentiful pig’, and in Manx folklore it refers to a type of supernatural creature that looks like a long-haired pig. It was said that if you caught an arkan sonney or ‘lucky piggie’, which tend to run away from people, you’ll be lucky and will find a silver piece in your pocket.
Sources: On-line Manx Dictionary, Irish Dictionary Online and MacBain Dictionary