lank vs pencil-thin

lank

adj
  • Slender or thin; not well filled out; not plump; shrunken; lean. 

  • Straight and flat; thin and limp. (Often associated with being greasy.) 

verb
  • To become lank. 

pencil-thin

adj
  • Somewhat cylindrical and slender like a pencil; also, tall and thin. 

How often have the words lank and pencil-thin occurred in a corpus of books? (source: Google Ngram Viewer )