I. ˈek-ˌsärk noun
Etymology: Late Latin exarchus, from Late Greek exarchos, from Greek, leader, from exarchein to begin, take the lead, from ex- + archein to rule, begin — more at arch-
Date: 1588
1. : a Byzantine viceroy
2. : an Eastern bishop ranking below a patriarch and above a metropolitan ; specifically : the head of an independent church
• ex·ar·chal ek-ˈsär-kəl adjective
• ex·arch·ate ˈek-ˌsär-kət noun
• ex·ar·chy ˈek-ˌsär-kē noun
II. adjective
Etymology: exo- + -arch
Date: 1891
: formed or taking place from the periphery toward the center
exarch xylem