மச்சம் - Macham
s. a little piece of gold cut off as a sort of tally; 2. a black speak or spot on the skin, a mole, மறு.
மச்சப்பொன், a little piece of gold kept as a sample to compare it with what was given to the goldsmith to work up. மச்சம் வெட்டிவைக்க, to cut off such a piece for that purpose.