n.
 a herbaceous plant having jagged leaves covered with stinging hairs. 
[
Urtica dioica and other species.]
 
▸used in names of plants of a similar appearance, e.g. dead-nettle.
v.
  - annoy; irritate.
 - archaic sting with nettles.
 
 
  Phrase
  
    
      - grasp the nettle
 Brit. tackle a difficulty boldly. 
    
   
  Etymology
  OE netle, netele, of Gmc origin.