1. 
   Perpend
   (perpendicular end) vertical cross joint in stone or brickwork. Perpends also refer to the ends of walls first built up by bricklayers to provide a level for the courses in between. See brick/brickwork and racking back.
   Found op http://www.encyclo.co.uk/local/20935
   
   
2. 
   Perpend
   Per·pend' transitive verb [ Latin perpendere , perpensum ; per + pendere to weight.] To weight carefully in the mind. [ R.] ' Perpend my words.' Shak.
   Found op http://www.encyclo.co.uk/webster/P/60
   
   
3. 
   Perpend
   Per·pend' intransitive verb To attend; to be attentive. [ R.] Shak.
   Found op http://www.encyclo.co.uk/webster/P/60
   
   
4. 
   Perpend
   • (v. i.) To attend; to be attentive. • (v. t.) To weight carefully in the mind.
   Found op http://thinkexist.com/dictionary/meaning/perpend/
   
   

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