公Public. Matters concerning the country or government. Government, state, office. To be known by many people. Obvious. Something ostensible. Unbiased. Correct. Neutral. A person of high status, such as a son, emperor, or monarch.
乃In other words. For that reason. So. A long time ago. In the past. You. A second-person pronoun for a person of equal or inferior status. The word for "no" is used in particles.
大Big. Large. Large in number or quantity. Greatly. Valuable. Important. Excellent. Splendid. Very much. Much. (Power or force) strong. long time. To be high in rank or position.
義Righteousness. The path that one should take as a human being. Meaning. Main idea. A kinship relationship formed by persons who are not related by blood. Instead of the real thing.