Learn how to say Iota correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word iota:
the ninth letter in the Greek alphabet (Ι, ι), a vowel or semivowel, transliterated as i or j
(usually used with a negative) a very small amount; jot (esp in the phrase not one or an iota)
C16: via Latin from Greek, of Semitic origin; see jot