alike vs duple

alike

adj
  • Having resemblance or similitude; similar; without difference. 

adv
  • In the same manner, form, or degree; in common; equally. 

duple

adj
  • Double. 

  • Having two beats in each foot. 

  • Having two beats, or a multiple of two beats, in each measure. 

How often have the words alike and duple occurred in a corpus of books? (source: Google Ngram Viewer )