Definition:Cipher/Linguistic Note
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Linguistic Note on Cipher
The word cipher can also be found in its less common spelling: cypher.
The word ultimately derives from the Arabic صِفْر (ṣifr), meaning zero or empty.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): cypher
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): cypher