plumose vs sericeous

plumose

adj
  • Having hairs, or other parts, arranged along an axis like a feather. 

  • Having feathers or plumes. 

sericeous

adj
  • Covered with very soft hairs pressed close to the surface. 

  • Having a silky lustre, usually due to fine, close hairs. 

  • Of or relating to silk; consisting of silk; silky. 

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