บางกะปิ

Uncertain. Possibly:

• บาง (baang, a generic term for settlements located near a watercourse) +‎ กะปิเยาะห์ (gà-bpì-yɔ́, “taqiyah”) (from Malay kopiah, from Arabic كُوفِيَّة (kūfiyya)^[1]), based on the fact that the place used to be inhabited by Malays from Kedah who produced taqiyahs for sale;^[2]
• บาง (baang, idem) +‎ กะปิ (gà-bpì, “monkey”) (from Sanskrit कपि (kapi) or Pali kapi), based on the fact that the emblem of the district bears a picture of the Hindu monkey deity Hanuman;^[2]
• บาง (baang, idem) +‎ กะปิ (gà-bpì, “shrimp paste”) (from Burmese ငါးပိ (nga:pi.)), based on the fact that the place used to be a location where shrimp paste was manufactured.^[2]

บางกะปิ

1. a district of Bangkok, Thailand