大だい母ぼ音いん推すい移いMeaningsNoun1. Great Vowel ShiftKanji used大large母mother音sound推infer移transferPitch accentだいぼいんすいいComposed of大だいlarge; big; great; huge; vast; major; important; serious; severe; prominent; …Prefix母ぼ音いんvowelNoun推すい移いtransition; change; progress; development; shift; passing (of time)Noun