Teselar or Tesselar: How To spell?
The word Teselar is misspelled against Tesselar, an adjective meaning "Formed of tesserae, as a mosaic."
Tesselar has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings te & elar which should not be misspelled with single 'S'
Wrong Spelling:  te-s-elar  Correct Spelling:  te-ss-elar 
Explore spell check of Tesselar to spell without errors.