Etymology From Chinese 茶 (chá), from Proto-Sino-Tibetan *s-la, via two routes: in some cases from Hindustani चा (cā) / چا (cā) (a variant of the same root, from Persian چا, which led to chai), from Northern Chinese; in other cases from 茶 (chá) /t͡sʰɑː²¹/, the pronunciation found in Canton (Guangzhou), where the British bought much of their tea in the 19th century. Doublet of tea, which is from the Amoy Min Nan pronunciation tê.
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Tea, (sometimes dialect) specifically masala chai.
Would you like a cup of cha?
[Krazy Kat, bringing a full tray:] Look, folkses – hot dogs, hot cha, hot peppa pots, hot timollies – hot kuffy. ^([sic])1934 August 4, George Herriman, Krazy Kat, Saturday, comic strip, →ISBN, page 206: