The story
- Chinese · calque of紅茶 /红茶
- English todayred tea
The “black tea” sense is a calque of Chinese 紅茶 /红茶 (hóngchá, literally “red tea”).
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A tisane (herbal tea) beverage made from various bush plants native to southern Africa, especially rooibos or honeybush. Full definition →
The “black tea” sense is a calque of Chinese 紅茶 /红茶 (hóngchá, literally “red tea”).
Etymology from Wiktionary, CC BY-SA 4.0.