- tet|rarch
- tet|rarch «TEHT rahrk, TEE trahrk», noun.1. the ruler of a part (originally a fourth part) of a subject country or province in the ancient Roman Empire.2. any one of various subordinate rulers.3. a) a ruler of a fourth part. b) one of four joint rulers, directors, or heads.╂[< Latin tetrarchēs < Greek tetrárchēs < tetra- four + árchein to rule]
Useful english dictionary. 2012.