The word "wert obligation" is hardly ever used in modern English, so finding synonyms for it could be quite challenging. However, the concept of obligation can be expressed in several other words that are more commonly used and easily understood. Some of the synonyms for obligation include responsibility, duty, commitment, accountability, requirement, obligation, and promise. All these words convey the idea of being bound by moral, social, or legal duties to do something. Whether it is paying bills, taking care of a family, or fulfilling a job description, these synonyms for obligation remind us that life requires us to be reliable and accountable for our actions.