The word Frothines is misspelled against Frothiness, a noun meaning "State or quality of being frothy."
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Frothiness 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:  frothine-s 
Correct Spelling:  frothine-ss 
Find more incorrect spellings of Frothiness to spell right way.