Underprof or Underproof: How To spell?

The word Underprof is misspelled against Underproof, an adjective meaning "Containing less alcohol than proof spirit. See Proof spirit, under Spirit."

--> Underproof has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings underpr & f which should not be misspelled with single 'O'
Wrong Spelling:  underpr-o-f 
Correct Spelling:  underpr-oo-f 
Find more incorrect spellings of Underproof to spell right way.

-->

You might be interested to know

Whot or Whoot?

Woed or Wooed?

Zocytia or Zoocytia?