The definition of iota is the ninth letter in the Greek alphabet, or a tiny bit of something.(noun)
See iota in Webster's New World College Dictionary
Origin: Gr iōta < Sem, as in Heb yōdh
See iota in American Heritage Dictionary 4
Origin: Latin iōta
Origin: , from Greek
Origin: , of Phoenician origin; see yd in Semitic roots.
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