Illustrated Companion to the Latin Dictionary/Defrutum

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

DE'FRUTUM (ἕψημα, σίραιον). New wine boiled down to one half its original quantity (Plin. H. N. xiv. 11.), in order to increase its strength; and employed by the ancient wine growers, as the "doctor" is by the moderns, in giving body to poor wine. Columell. xii. 37.