Niplewort or Nipplewort: How To spell?
The word Niplewort is misspelled against Nipplewort, a noun meaning "A yellow-flowered composite herb (Lampsana communis), formerly used as an external application to the nipples of women; -- called also dock-cress."
Nipplewort has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings ni & lewort which should not be misspelled with single 'P'
Wrong Spelling:  ni-p-lewort  Correct Spelling:  ni-pp-lewort 
Find more incorrect spellings of Nipplewort to spell right way.