The word Decusating is misspelled against Decussating, which is present continuous of "Decussate"
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Decussating has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings decu & ating which should not be misspelled with single 'S'
Wrong Spelling:  decu-s-ating 
Correct Spelling:  decu-ss-ating 
Check more misspelled words of Decussating to spell it correct.