Webster’s Revised Unabridged Dictionary · 1913
Stratarithmetry
Strat′a·rith′me·try (·rĭth′mē·try̆), n. [Gr. στρατός army + ἀριθμός number + -metry.] (Mil.) The art of drawing up an army, or any given number of men, in any geometrical figure, or of estimating or expressing the number of men in such a figure.