2.
It has been held that Livy here mistranslated Polybius, who meant maniples. Everything depends upon the interpretation of
trei=s spei/ras and a following parenthesis,
this infantry unit is called a cohort (
koo/rtis )by the Romans
(XI. xxiii.
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1). It remains debatable whether
this unit
refers to the single
spei/ra, which must then be a maniple, or to the three combined to make a cohort. For
manipulus the regular word was
shmei/a Later on
spei/ra came to be cohort almost invariably.
20
But in Polybius' time one could use either
shmei/a or
spei/ra in the same meaning, as VI. xxiv. 5; so even in the same sentence, as
l. c. § 8; III. cxiii. 3;