Oh, I just noticed that the word for "peach" seems related to the Greek and Latin names too (melon persikon / malum persicum).
Isn't אב a synonym for אבא in any context?
Aba is actually Aramaic and Av is Hebrew. We use Aba universally in modern Hebrew and so it has become the only answer in this program
there seems to be a difference in nuance, father or dad..
Certainly. av is father as "object", aba is father as "title".
I think אב is more classical. Sometimes refers to God as the Father. אבא seems to be an influence from Aramaic.
Ha-aba okhel afarseq