The term 'REVIEW HARSHLY' can be broken down into two crossword solutions: PAN (3 letters) and SCATHE (6 letters). PAN is a verb meaning to criticize or express disapproval of someone or something. It is derived from the Greek word 'panikos', which means 'all-inclusive'. SCATHE is a verb meaning to criticize severely or harshly. It is derived from the Old English word 'scathian', which means 'to injure or harm'. Together, these two words form the phrase 'review harshly', which means to criticize or express disapproval of someone or something in a very severe or harsh manner.