1. Root

 ken, sken

2. Lexical meanings

 DE: beginnen, entspringen
EN: arise, make an effort, set oneself in motion

3. Comparative evidence

4. Formally comparable roots

 1.skel, 1.skend, 1.skep, 1.sker, 2.ken, 2.skel, 2.kend, 2.skend, 2.skep, 2.sker, knei̯gʷʰ, kand, kend, kenh₁, keni̯, kent, kneh₂, knei̯bʰ, knei̯d, kneu̯h₁, kneu̯h₂, kneu̯h₃, kenh₁, kenh₂, kenh₃, sek, sekh₁, sekh₂, sekh₃, skabʰ, skebʰh₁, skebʰh₂, skebʰh₃, skedh₂, skeh₁t, skeh₂t, skeh₃t, skek, skelh₁, skelh₂, skelh₃, skelh₁, keng, kenǵ, skeng, skenǵ, skerb, skerbʰ, skerdʰ, skerh₁, skerh₂, skerh₃, skerp, skers, skert, skeu̯bʰ, skeu̯d, skeu̯h₁, skeu̯h₂, skeu̯t, skreb, skrei̯t, skrengʷ, skrei̯, skeh₁tʰ, skrei̯bʰ, skeh₁tʰ, kan, kend

5. Formally/Semantically comparable roots

 1.skend

6. Revised root variants

7. Comments

8. References

LIV = Rix, Helmut et al. 2001. Lexikon der indogermanischen Verben: Die Wurzeln und ihre Primärstammbildungen. 2 Aufl. Wiesbaden: Dr. Ludwig Reichert Verlag.

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