verge1
  
  n.
  - an edge or border. 
▸Brit. a grass edging by the side of a road or path.
 ▸Architecture  an edge of tiles projecting over a gable.
 - an extreme limit beyond which something specified will happen:
 I was on the verge of tears.
 
v.
 
(
verge on)
 be very close or similar to:
 his attitude verges on racist.
 
  Etymology
  ME: via OFr. from L. virga ‘rod’.
 
  
    
verge2
  
  n.
 a wand or rod carried before a bishop or dean as an emblem of office.
 
  Etymology
  ME: from L. virga ‘rod’.
 
  
    
verge3
  
  v.
 incline in a certain direction or towards a particular state.
 
  Etymology
  C17 (in the sense ‘descend to the horizon’): from L. vergere ‘to bend, incline’.