The story
From candle + berry: the waxy coating on the fruits of several species was traditionally used to make candles.
Etymology from Wiktionary, CC BY-SA 4.0.
candleberry
Today it means: Any of the plants in the genus Myrica, containing about 35-50 species of small trees and shrubs in the family Myricaceae, order Fagales, with a wide distribution, including Africa, Asia, Europe, North America and South America. Full definition →