1. Root

 h₂ems

2. Lexical meanings

 EN: black, blackbird

3. Comparative evidence

4. Formally comparable roots

 h₂melḱ, h₂emh₁, h₂emh₂, h₂emh₃, h₂emh₃, h₂emǵʰ, h₂meh₁, h₂mei̯gʷ, h₂melǵ, h₂merd, h₂mert, h₂merǵ

5. Formally/Semantically comparable roots

6. Revised root variants

7. Comments

8. References

Watkins 2011 = Watkins, Calvert. 2011. The American heritage dictionary of Indo-European roots. 3rd revised ed. Boston, New York: Houghton Mifflin Harcourt.