Stipled or Stippled: How To spell?
The word Stipled is misspelled against Stippled, which is past tense of "Stipple"
Stippled has double "pp" is mispronounced as "p"Remember double 'PP' in between the strings sti & led which should not be misspelled with single 'P'
Wrong Spelling:  sti-p-led  Correct Spelling:  sti-pp-led 
Find more wrongly spelled words of Stippled to spell it well.