chaptalize [ cháptə līz ](3rd person present singularchaptalizes, present participlechaptalizing, past and past participlechaptalized) or chaptalise [ cháptə līz ](3rd person present singularchaptalises, present participlechaptalising, past and past participlechaptalised)
transitive verb
Definition:
add sugar to wine: to increase the alcohol content of wine by adding sugar before or during fermentation
[Late 19th century. After J. A. Chaptal (1756-1832), French chemist]