Greek-English translations for δικαιολόγηση

• excuse
  I excused him his transgressions.
  May I be excused from the table?
  I excused myself from the proceedings to think over what Id heard.
• justification
  I think the term 'justification' is also problematic. Θεωρώ ότι ο όρος "δικαιολόγηση" είναι επίσης προβληματικός.