Pyjamas

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early 19th century: from Urdu and Persian, from pāy ‘leg’ + jāma ‘clothing’.

wiktionary

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etymonline

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pyjamas (n.)

also pyjama (adj.), chiefly British English spelling of pajamas. Early spellings in English also include pai jamahs (1800); pigammahs (1834), peijammahs (1840).