Tresure or Tressure: How To spell?

The word Tresure is misspelled against Tressure, a noun meaning "A kind of border similar to the orle, but of only half the breadth of the latter."

--> Tressure has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings tre & ure which should not be misspelled with single 'S'
Wrong Spelling:  tre-s-ure 
Correct Spelling:  tre-ss-ure 
Check more misspelled words of Tressure to spell it correct.

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