Abd (Arabic: عبد*) is an Arabic word meaning one who is totally subordinated;
a slave or a servant. The word can also be transliterated into English as 'Abd, where the apostrophe indicates the ayin, denoting a guttural "a" sound.
It appears in many common Arab names followed by Al (the) in form of "Abd ul", "Abd ul-", etc.; this is also commonly translitated as "el-," in the form "Abd el-", meaning "servant of the-". This is always followed by one of the names for God. These names are given in List of Arabic theophoric names and 99 Names of God.
A widespread name Abdullah (name) (or 'Abd Allah) means "servant of God" or "worshipper of God".
Abd Rabbuh (“slave of his Lord” or “servant of his Lord”

Abduh (“His slave” or “His servant”

Abdul Nabi (“slave of the Prophet” or “servant of the Prophet”
http://en.wikipedia.org/wiki/Abd_(Arabic)