tetrarch
UK /ˈtɛtɹɑːk/ · US /ˈtɛtɹɑɹk/ noun, adjective
Forms tetrarchs
- noun A governor or ruler of a quarter of a country, especially of a fourth part of a province in or client state of Ancient Rome.
- noun Each of the four members of a jointly ruling tetrarchy, notably of the Roman Empire since Diocletian.
- noun An officer in charge of a fourth part of a phalanx in Ancient Greece.
- adjective (botany) Having four vascular strands in a fibrovascular cylinder or stele.
Etymology
Borrowed from Latin tetrarchēs, from Ancient Greek τετράρχης (tetrárkhēs), from τετρα- (tetra-, “four”) + -άρχης (-árkhēs, “ruler, leader”).
Webster’s 1913
- noun A Roman governor of the fourth part of a province; hence, any subordinate or dependent prince; also, a petty king or sovereign.
- adjective Four. [Obs.] Fuller.
Etymology [L. tetrarches, Gr. Tetra-) + tétrarque. See Arch, a.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “tetrarch”, CC BY-SA 4.0. Details