The story
From Rosie (“female name”) + Lee (“surname, or female or male given name”), chosen for its rhyme with tea.
First known use, by meaning
- from early 20th c. Synonym of tea (“(uncountable) a drink made by infusing dried leaves or buds of the tea plant (Camellia sinensis) in hot water; (countable) a cup of this drink”)
Etymology from Wiktionary, CC BY-SA 4.0.