Abdu (also spelled Abdo, Abdoh, Abdou, or Abduh, Arabic: عبده or عبدو) is a masculine Arabic given name. It is the nickname for Abdul… and can also be used as male given name in Arabic language.
`Abdu’l-Bahá' (Persian/Arabic: عبد البهاء, 23 May 1844 – 28 November 1921), born ‘Abbás Effendí (Persian: عباس افندی), was the eldest son of Bahá'u'lláh, the founder of the Bahá'í Faith. In 1892, `Abdu'l-Bahá was appointed in his father's will to be his successor and head of the Bahá'í Faith. `Abdu'l-Bahá was born in Tehran to an aristocratic family of the realm. At the age of eight his father was imprisoned and the family's possessions were looted, leaving them in virtual poverty. Along with his father, `Abdu'l-Bahá was exiled to Baghdad where the family lived for nine years.
During his youth he was faithful to his father and was regarded as an outstanding member of the Bahá’í exile community. As a teenager he was his father’s amanuensis and was regularly seen debating theological issues with the learned men of the area. In 1863, Bahá'u'lláh and his family were banished from Baghdad to Istanbul. During the 1860s the family was further banished from Constantinople to Adrianople, and then finally to the penal-colony of Acre, Palestine.