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hypoionian mode

American  
[hahy-poh-ahy-oh-nee-uhn, hip-oh-, hahy-poh-, hip-oh-] / ˈhaɪ poʊ aɪˈoʊ ni ən, ˈhɪp oʊ-, ˌhaɪ poʊ-, ˌhɪp oʊ- /

noun

Music.
  1. a plagal church mode represented on the white keys of a keyboard instrument by an ascending scale from G to G, with the final on C.


Etymology

Origin of hypoionian mode

hypo- + Latin Ion ( ius ) Ionian + -ian