The word Sucumbed is misspelled against Succumbed, which is past tense of "Succumb"
-->
Succumbed has double "cc" is mispronounced as "c"
Remember double 'CC' in between the strings Su & umbed which should not be misspelled with single 'C'
Wrong Spelling:  Su-c-umbed 
Correct Spelling:  Su-cc-umbed 
Check more misspelled words of Succumbed to spell it correct.