The big "I"

Thanks to Dr. Conrad on the B-Greek list for this. From the blog laudator temporis acti

Robert Frost, Iota Subscript:

Seek not in me the big I capital,
Not yet the little dotted in me seek.
If I have in me any I at all,
'Tis the iota subscript of the Greek.

So small am I as an attention beggar.
The letter you will find me subscript to
Is neither alpha, eta, nor omega,
But upsilon which is the Greek for you.

Iota subscript does not appear beneath upsilon (υ) in Greek, only beneath alpha (ᾳ), eta (ῃ), and omega (ῳ).

<idle musing>
How appropriate.
</idle musing>