ETYMOLOGY
replication of tiddy (tiny, small)
EXAMPLE
“… In time came those maternal joys
Which take the form of girls or boys,
And strange to say of each they’d one –
A tiddy iddy daughter, and a tiddy iddy son!…”
From: The “Bab” Ballads:
Much Sound and Little Sense
By W. S. Gilbert, 1869
Thomas Green and Harriet Hale.
To be Sung to the Air of “An ‘Orrible Tale”
Lexicophilia 