The word Abacies is misspelled against Abbacies, which is plural of "Abbacy"
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Abbacies has double "bb" is mispronounced as "b"
Remember double 'BB' in between the strings A & acies which should not be misspelled with single 'B'
Wrong Spelling:  A-b-acies 
Correct Spelling:  A-bb-acies 
Find more wrongly spelled words of Abbacies to spell it well.