https://en.wikipedia.org/wiki/Tuatha_Dé_Danann
The Old Irish word tuath (plural tuatha) means "tribe, folk, people"; dé is the genitive case of día and, depending on context, can mean "god, gods, goddess" or more broadly "supernatural being, object of worship". In the earliest writings, the mythical race are referred to as the Tuath Dé, "tribe of gods", or Tuatha Dé, "tribes of gods". In the Lebor Bretnach their name is translated into ...