fo-ghooinney (Manx) comes from Manx dooinney, from Old Irish duine, from Proto-Celtic gdonyos, from Proto-Indo-European dʰǵʰm̥mō, from Proto-Indo-European dʰéǵʰōm, from Proto-Indo-European -ōm, from Proto-Indo-European -mi.
fo-ghooinney (Manx): inferior