Comparative evidence

2.ḱel, 2.ḱelh₁, 2.ḱleh₁

• Lat. caleō -ēre ‘be hot’, ‘be warm’, ‘be roused’, ‘be active’ (OLD: 258)

References

OLD = Glare, P. G. W. 1968. Oxford Latin Dictionary. Oxford: Clarendon Press.