Dybo’s law is a name given to a rightward accentual shift that occurs in Proto-Slavic accentual paradigm b or in nonacute accentual paradigm a (a.p. a; see Slavic accentology), where the original *ˋ and *˜ (nonacute prosodemes in immobile accentual paradigm; “dominant circumflexes” in the terminology of the Moscow accentological school) shift to the next syllable (the recessive circumflexes, *  ̏ and *  ̑, which are phonologically unstressed, do not shift, nor does the old acute *˝), e.g., *bòba ‘bean-gen.sg’ > *boba̍. The law is nam…