33.11 In the Classical period, inscriptions show the following numerals. This system is called ACROPHONIC, i.e., some of the numbers are represented by the first letter of the word for that number (S 348A). Note, for example, a version of the Π = πέντε; Δ = δέκα; Η = ἑκατόν (Η in an earlier alphabet was the letter representing a rough breathing, and so was the first letter of the older form hεκατόν); Χ = χίλιοι; and Μ = μύριοι.
Note also the compound signs. In these cases, multiply the numbers that comprise the compound.
After the 2nd c. B.C., ALPHABETIC NUMERALS replace the acrophonic system (S 347, G 188).
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