What is the meaning of Honeyberry?

Edible fruit of the mamoncillo (Melicoccus bijugatus), a soapberry which tastes like a mix of lychee and lime.

Edible fruit of the blue-berried honeysuckle (Lonicera caerulea).

Edible, sweet, dark purple fruit of the deciduous European nettle tree (Celtis australis).

Source: wiktionary.org