The following are lexemes from indic languages:
samanom = an obsolete word for gold (Santali. Campbell lexicon)
sambr.o bica = gold ore (Mundarica)
hom = gold (Kannada)
somnakay = gold (Gypsy)
assem = electrum (Old Egyptian. cf. Joseph Needham)
soma man.al = sand containing silver ore (Tamil. Winslow lexicon)
Substrates of mleccha? Vedic, Avestan! soma, haoma.
Kalyanaraman