The term 'chastise severly' can be summarized by the crossword solution 'SCOURGE'. A SCOURGE is an instrument of punishment, typically a whip or rod, used to inflict physical pain as a form of discipline. Historically, scourging was used as a form of corporal punishment, often as a prelude to execution. In modern times, it is still used in some countries as a form of legal punishment. Therefore, the term 'chastise severly' can be interpreted as a severe form of punishment, such as scourging.