Thriftines or Thriftiness: How To spell?
The word Thriftines is misspelled against Thriftiness, a noun meaning "The quality or state of being thrifty; thrift."
Thriftiness has double 'ss' in the end mispronounced as 's'Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling:  thriftine-s  Correct Spelling:  thriftine-ss 
Find more wrongly spelled words of Thriftiness to spell it well.