গামছা (Bengali) comes from Bengali গামোছা, from Assamese গা, from Sauraseni Prakrit 𑀕𑀸𑀫, from Sanskrit ग्राम, from Proto-Indo-Aryan grā́mas, from Proto-Indo-Iranian grā́mas, from Proto-Indo-European h₂ger- — to gather; flock, herd.
গামছা (Bengali): towel