ਉਗਾਲ਼ਦਾਨ (Punjabi) comes from Punjabi -ਦਾਨ, from Persian دان, from Persian دانستن, from Middle Persian YDOYTWN-stn', from Indo-Iranian *ȷ́ānáHti, from Proto-Indo-European ǵn̥néh₃ti, from Proto-Indo-European ǵneh₃- — to know.
ਉਗਾਲ਼ਦਾਨ (Punjabi): spittoon, cuspidor