The Collaborative International Dictionary
Historionomer
Historionomer \His*to`ri*on"o*mer\, n. [Gr. ? history + ? to distribute.] One versed in the phenomena of history and the laws controlling them.
And historionomers will have measured accurately the
sidereal years of races.
--Lowell.
Wiktionary
historionomer
n. One versed in the phenomena of history and the laws controlling them.