Vasalage or Vassalage: How To spell?
The word Vasalage is misspelled against Vassalage, a noun meaning "A territory held in vassalage."
Vassalage has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings va & alage which should not be misspelled with single 'S'
Wrong Spelling:  va-s-alage  Correct Spelling:  va-ss-alage 
Explore spell check of Vassalage to spell without errors.