OVERPROOF
Etymology
Adjective
overproof (not comparable)
Possessing a higher proportion of alcohol than proof spirit.
Synonym: above proof
Antonym: underproof
Synonyms
• Abbreviation: OP
Noun
overproof (plural overproofs)
A spirit possessing a higher proportion of alcohol than proof spirit.
Verb
overproof (third-person singular simple present overproofs, present participle overproofing, simple past and past participle overproofed)
(transitive, baking) To proof (allow dough containing yeast to rise) excessively.
Antonym: underproof
Source: Wiktionary
O"ver*proof", a.
Definition: Containing more alcohol than proof spirit; stronger than proof
spirit; that is, containing more than 49.3 per cent by weight of
alcohol.
Source: Webster’s Unabridged Dictionary 1913 Edition