Boyd’s Bible Dictionary:
(first). In Bible sense, patriarch, head of a family or chief of a tribe; governor or magistrate (1 Kings 20:14); satrap or ruler (Dan. 6:1).
Concise Bible Dictionary:
There are sixteen different Hebrew words so translated. The principal are
1. nasi, “one raised up”; this is translated also “ruler, governor, captain, and chief.” It is applied to “the princes of the congregation”: these would be the heads of families in the various tribes (Josh. 9:15-21).
2. sar, “to bear rule,” hence applied to the head men in the tribes, “chief of the fathers”; and to the satraps in the Persian empire (Esther 1:3-21). In Daniel these same are called achashdarpenayya, “chief governors” (Dan. 3:2-3, 27; Dan. 6:1-7).
Princess is sarah (1 Kings 11:3; Lam. 1:1). The word sar is also employed for the Prince of peace in Isaiah 9:6, and for Michael the archangel, and for the prince of Persia who opposed him, and for the prince of Grecia (Dan. 10:13-21).