bilberry

N. The hortleberry, or whortleberry, in other parts.

Bilberry
·noun The European whortleberry (Vaccinium myrtillus); also, its edible bluish black fruit. II. Bil...

Webster's Dictionary of the English Language
bilberry
(genus vaccinium.) The popular name of a shrub of several species, and bearing fruit resembling the ...

Dictionary of American Words And Phrases by John Russell Bartlett.