Online Google Dictionary

bounden 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. morally obligatory; "my bounden duty"
  2. An obligation is a requirement to take some course of action, whether legal or moral. There are also obligations in other normative contexts, such as obligations of etiquette, social obligations, and possibly in terms of politics, where obligations are requirements which must be fulfilled. ...
  3. Under an obligation; obliged (to do something)