Comparative evidence

gʷʰh₂el, sgʷʰh₂el

• Arm. sxalem 'fail', 'be wanting', 'err', 'commit an oversight', 'be led into mistakes', 'mistake' ;'sin', 'fall into error', 'go astray' ; 'make a false step', 'stumble', 'trip'(Bedrossian 1879: 643)

References

Bedrossian 1879 = Bedrossian, M.M. 1879. New Dictionary Armenian - English. Venice: S. Lazarus Armenian Academy.