Lasos or Lassos: How To spell?
The word Lasos is misspelled against Lassos, which is plural of "Lasso"
Lassos has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings la & os which should not be misspelled with single 'S'
Wrong Spelling:  la-s-os  Correct Spelling:  la-ss-os 
Find more incorrect spellings of Lassos to spell right way.