Could Eliza ever be short for Elizabeth?

[Nova67]

My great-grand aunt was registered at birth as Elizabeth - also known as Eliza and Lizzie on official documents. The preference seemed to be Eliza.

She never married and had four illegitimate sons and I have found her under two alternative surnames and one misspelling of her maiden name on her “husbands” death certificate.

She also had a half-sister called Elizabeth.

[coombs]

Yes I have a few instances of Eliza known as Elizabeth and vice versa.

I do have 2 sisters in one line both called Eliza and Elizabeth though, and both lived to adulthood.

Like Susan known as Susannah, and vice versa. I have several Susan's also known in records as Susannah/Susanna.

[LizzieL]

Absolutely.
Also Lizzie, Elspet (in Scotland mostly) Betty etc

When searching for others on here sometimes a family names one Daughter Elizabeth and another Eliza also to confuse things even more

Elspet(h) can also be names in their own right.
I think Elizabeth has more diminutives than any other name