triarchn.
/ˈtrʌɪɑːk/ 1. The ruler of one of three divisions of a country or territory.
ΘΚΠ
society > authority > rule or government > ruler or governor > [noun] > of a part of a country
tetrarch1610
pentarch1713
heptarch1822
triarch1886
1886 J. Bury in Jrnl. Hellenic Stud. 7 314 These three lords were called the terzieri (tierciers) of Negroponte. Hopf calls them Dreiherrn, and we may call them triarchs.
1886 J. Bury in Jrnl. Hellenic Stud. 7 321 William laid claim..to the north of Euboia, calling himself a triarch.
2. In Fourier's social organization: A ruler of the third (ascending) rank.
ΘΚΠ
society > authority > rule or government > ruler or governor > [noun] > subordinate ruler > of specific rank in Fourier's system
tetrarch1848
triarch1848
1848 Tait's Edinb. Mag. 15 706 There will be duarchs for four phalanx, triarchs for 12, tetrarchs for 48, and so on until the douzarch reigns over a million.
Derivatives
ˈtriarchate n. [compare patriarchate] rare an association of three rulers.
ΘΚΠ
society > authority > rule or government > ruler or governor > joint ruler > [noun] > one of specific number of > set of specific number of
triumvirate1584
triumvirship1597
triumviry1598
decemvir1600
pentarchy1607
triumvir1619
decarchya1638
decemvirate1651
tetrarchy1716
decadarchy1849
triarchy1859
triarchate1881
1881 H. Hartshorne 1931: Glance at 20th Cent. 15 Then, the triarchate; is it not surprising? Pope, Patriarch, and Primate of Canterbury! Roman, Greek, and Anglican, united at last!
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2021).
triarchadj.
/ˈtrʌɪɑːk/ Botany.
Arising from three points of origin, as the woody tissue of a root: cf. diarch adj.
ΘΚΠ
the world > plants > part of plant > cell or aggregate tissue > [adjective] > having particular number of points of origin
heptarch1884
octarch1884
oligarch1884
pentarch1884
polyarch1884
tetrarch1884
triarch1884
hexarch1900
1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 354 As a rule the xylem-plates are diarch in Lupinus varius,..triarch in Pisum sativum,..tetrarch in Phaseolus.
1884 F. O. Bower & D. H. Scott tr. H. A. de Bary Compar. Anat. Phanerogams & Ferns 363 Triarch and tetrarch bundles sometimes occur in thick roots of species which are usually diarch.
1895 S. H. Vines Students' Text-bk. Bot. 179 The stele may have—in different structures—one to many protoxylem (primitive wood) groups, and is accordingly described as monarch..diarch..triarch..tetrarch..polyarch.
This entry has not yet been fully updated (first published 1914; most recently modified version published online June 2018).
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n.1848adj.1884