From Middle Low German macht, from Proto-Germanic *mahtiz, derived from the verb from *maganą (“to be able”). Cognate with English might and German Macht. The Old Norse form was máttr (from *mahtuz).
magt c (singular definite magten, plural indefinite magter)
magt f (definite singular magti, indefinite plural magter, definite plural magterne or magtene)