Comparative evidence

1.bʰeh₂

• Arm. banam va. 'open',  'discover',  'disclose',  'develop',  'explain' ;  'loosen';  'perforate',  'pierce',  'bore';  'spread',  'enlarge' ,  'extend' ;  'unfold',  'untwist',  'unlink' ;  'rub'  vp. 'open'; to 'be detached one from another' (Bedrossian 1879: 90)

References

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