peakish vs sickly-looking

peakish

adj
  • Having thin or sharp features, as from sickness; sickly; peaky. 

  • Having peaks; peaked. 

  • Of or relating to a peak or peaks; belonging to a mountainous region. 

sickly-looking

How often have the words peakish and sickly-looking occurred in a corpus of books? (source: Google Ngram Viewer )