The Middle English phrase "ayenbite of inwit" refers to the sense of guilt, remorse or regret felt by an individual for their wrongdoing. However, there are many synonyms that can be used in place of this phrase, depending on the context and tone of the situation. Some examples include contrition, penitence, shame, compunction, remorsefulness, or even simply regret. These emotions are often associated with feelings of moral responsibility and a desire to make things right, and can be expressed in a variety of ways, such as through apologies, acts of service, or other forms of restitution.