See also: Dikaios, Kos and Dicaeus (mythology). Dikaios (Greek: δικαιος, lit. 'righteous, just'; sometimes romanised as dicæus) is a title first used by Hellenistic Greek rulers, and later also given to holy men and women of the Old Testament in Eastern Christianity.
The term dikaios originates from the Greek language, meaning righteous or just.
Dikaios was mainly used as an epithet in the titles of Hellenized dynasts in regions such as Bactria Parthia, Cappadocia, and Pontus.[1]
In Eastern Christianity, dikaios distinguishes these individuals from saints recognized in the Christian era. These righteous individuals, known as dikaioi, are celebrated with their own feast days in the liturgical year. Notably, figures like the Maccabees are commemorated akin to Christian martyrs, and even Pontius Pilate is honored as one of the Righteous in the Coptic Orthodox Church.