τετραφαλαγγία

A. corps of four phalanxes or a phalanx in four divisions, i.e. of 16,384 men, Plb. 12.20.7, Arr. Tact. 28.6, Ael. Tact. 36.6, Polyaen. 4.7.12.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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