The word Jabernowl is misspelled against Jabbernowl, a noun meaning "Same as Jobbernowl."
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Jabbernowl has double "bb" is mispronounced as "b"
Remember double 'BB' in between the strings Ja & ernowl which should not be misspelled with single 'B'
Wrong Spelling:  Ja-b-ernowl 
Correct Spelling:  Ja-bb-ernowl 
Find more incorrect spellings of Jabbernowl to spell right way.