from
The Collaborative International Dictionary of English v.0.48
Iota \I*o"ta\, n. [L., fr. Gr. 'iw^ta. See {Jot}.]
[1913 Webster]
1. The ninth letter of the Greek alphabet ([iota])
corresponding with the English i.
[1913 Webster]
2. [from iota being the smallest letter in the Greek
alphabet.] A very small quantity or degree; a jot; a
particle.
[1913 Webster +PJC]
They never depart an iota from the authentic
formulas of tyranny and usurpation. --Burke.
[1913 Webster]
{Iota subscript} (Gr. Gram.), iota written beneath a
preceding vowel, as a,, h,, w,, -- done when iota is
silent.
[1913 Webster]