1. Root

 3.h₁el

2. Lexical meanings

 EN: eel, snake, worm

3. Comparative evidence

4. Formally comparable roots

 1.h₁el, 2.h₁el, h₁elh₂, h₁elk, h₁lei̯ǵ, h₁lengʷʰ, h₁lengʰ, h₁lenǵʰ, h₁leu̯dʰ

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.