1. Root

 3.ḱei̯

2. Lexical meanings

 EN: gray

3. Comparative evidence

4. Formally comparable roots

 1.ḱei̯, 2.ḱei̯, ḱi̯eh₂p, ḱei̯d, ḱei̯h₂, ḱei̯s, ḱi̯eh₁, ḱi̯eh₂, ḱi̯eh₃, ḱi̯eh₂

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.