List: Nidan verb (upper class) with 'bu' ending (archaic)

archaic  nidan verb (archaic)  nidan verb (archaic)  verb (generic)  intransitive verb 

• to apologize, to apologise

archaic  nidan verb (archaic)  nidan verb (archaic)  verb (generic)  intransitive verb 

• to be worried, to be grieved, to pine for

archaic  nidan verb (archaic)  nidan verb (archaic)  verb (generic) 

• to act violently (roughly, rashly)