Pajamas

google

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

wiktionary

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From Urdu پاجامہ‎ (pājāma)/Hindi पैजामा(paijāmā), from Persian پايجامه / پاجامه‎ (pâyjâma / pâjâma, “leg garment”), akin to پا‎ (“leg”) + جامه‎ (“garment”).

etymonline

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pajamas (n.)

also pajamahs, 1800, pai jamahs "loose trousers tied at the waist," worn by Muslims in India and adopted by Europeans there, especially for nightwear, from Hindi pajama, probably from Persian paejamah, literally "leg clothing," from pae "leg" (from PIE root *ped- "foot") + jamah "clothing, garment." The modern U.S. spelling is by 1845; British spelling tends toward pyjamas.