Pestering persistently is a behavior that involves repeatedly asking someone to do something, often in an annoying or irritating way. The term 'pester persistently' can be broken down into four words: HASSLE (6 letters), HARASS (6 letters), NAG (3 letters), and nagat (5 letters). HASSLE and HARASS both refer to the act of pestering someone, while NAG and nagat are more specific terms for this behavior, referring to the repeated requests or demands made by the pestering person.