पट्ट

• (Vedic) IPA^(key): /pɐʈ.ʈɐ/, [pɐʈ̚.ʈɐ]
• (Classical) IPA^(key): /ˈpɐʈ.ʈɐ/, [ˈpɐʈ̚.ʈɐ]

Probably a Middle Indic form of पत्त्र (pattra, “leaf”), according to Mayrhofer. Turner is skeptical, but gives reluctant support due to the presence of the Dardic form *पट्ट (paṭṭa), as well as the fact that many descendants of पत्त्र (pattra) do mean "metal plate".

पट्ट • (paṭṭa) stem, m

1. a slab, tablet (for painting or writing upon)
   1. (especially) a copper plate for inscribing royal grants or orders
2. the flat or level surface of anything

Likely a variant of पट (paṭa, “garment”).

पट्ट • (paṭṭa) stem, m

1. cloth
2. colored or fine cloth, woven silk
3. an upper or outer garment
4. a place where 4 roads meet

Probably the same as Etymology 2.

पट्ट • (paṭṭa) stem, m

1. a bandage, ligature, strip, fillet (of cloth, leather, etc.)
2. a frontlet, turban (of 5 kinds, namely those of kings, queens, princes, generals, and the प्रसाद-पट्टस्, or turban of honor), tiara, diadem

• Monier Williams (1899) “पट्ट”, in A Sanskrit–English Dictionary, […], new edition, Oxford: At the Clarendon Press, →OCLC, pages 579/2-3.
• Mayrhofer, Manfred (2001) Etymologisches Wörterbuch des Altindoarischen [Etymological Dictionary of Old Indo-Aryan]‎ (in German), volume 3, Heidelberg: Carl Winter Universitätsverlag, pages 299-300
• Turner, Ralph Lilley (1969–1985) “paṭṭa”, in A Comparative Dictionary of the Indo-Aryan Languages, London: Oxford University Press