Lemas or Lemmas: How To spell?
The word Lemas is misspelled against Lemmas, which is plural of "Lemma"
Lemmas has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings le & as which should not be misspelled with single 'M'
Wrong Spelling:  le-m-as  Correct Spelling:  le-mm-as 
Explore spell check of Lemmas to spell without errors.