SAMECH sä’ mĕk (ס, Samek). The fifteenth letter of the Heb. alphabet. In the KJV it is placed at the beginning of the fifteenth section of Psalm 119, and every v. of this section of the psalm begins with this letter.

International Standard Bible Encyclopedia (1915)

The 15th letter of the Hebrew alphabet; transliterated in this Encyclopedia as "c". It came to be used for the number 60. For name, etc., see Alphabet.