Buterbur or Butterbur: How To spell?

The word Buterbur is misspelled against Butterbur, a noun meaning "A broad-leaved plant (Petasites vulgaris) of the Composite family, said to have been used in England for wrapping up pats of butter."

--> Butterbur has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings bu & erbur which should not be misspelled with single 'T'
Wrong Spelling:  bu-t-erbur 
Correct Spelling:  bu-tt-erbur 
Check more misspelled words of Butterbur to spell it correct.

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