9 Grammatical Pitfalls
"charmingly small," 1890, from itty and/or bitsy. Bitsy-itsy is recorded from 1875.
Tiny; esp, small and cute; little bitty, teensy-weensy: I can't find even an ittybitty scrap of paper to show who these Wunderkinds are
[late 1930s+; fr baby talk]