noun
imperial might; power of the Emperor
Honorific and poetic term for the Emperor's authority or power. Rare in modern everyday language; mostly found in historical, literary, or ceremonial contexts.
御稜威によって国は治められた。
The land was governed by the Emperor's might.
The reading みいつ is a jukujikun (special kanji reading) assigned to the kanji 御稜威, which together convey the meaning of 'august authority'. The exact historical derivation is uncertain; the spelling is conventionally associated with the Emperor's power.