Swallowort or Swallowwort: How To spell?
The word Swallowort is misspelled against Swallowwort, a noun meaning "A poisonous plant (Vincetoxicum officinale) of the Milkweed family, at one time used in medicine; -- also called white swallowwort."
Swallowwort has double "ww" is mispronounced as "w"Remember double 'WW' in between the strings swallo & ort which should not be misspelled with single 'W'
Wrong Spelling:  swallo-w-ort  Correct Spelling:  swallo-ww-ort 
Find more incorrect spellings of Swallowwort to spell right way.