tetrarchate

tet·rar·chy

T0133200 (tĕt′rär′kē, tē′trär′-) also tet·rar·chate (-kāt′, -kĭt)n. pl. tet·rar·chies also tet·rar·chates 1. The area ruled by a tetrarch.2. a. Joint rule by four governors.b. The four governors so ruling.