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.