youngberry

noun

young·​ber·​ry ˈyəŋ-ˌber-ē 

: the large sweet reddish-black fruit of a cultivar of a bramble closely related to the boysenberry and loganberry and grown in the western and southern U.S.

also : a bramble bearing youngberries

Word History

Etymology

B. M. Young flourished 1905 American fruit grower

First Known Use

1927, in the meaning defined above