demi-sec

[ dem-ee-sek ]

/ ˈdɛm iˈsɛk /

(of wines) semidry; sweeter than sec but drier than doux.

Origin of demi-sec

From French, dating back to 1930–35; see origin at demi-, sec¹

Extra dry, for example, is actually sweeter than brut, which is drier than demi-sec, which is somewhat sweet.

Champagne: You’re Drinking It All Wrong |Kayleigh Kulp |December 20, 2014 |DAILY BEAST
Most orchards usually have two types: Demi-Sec, or semi-sweet, and Cidre Brut, which is a dry cider.

On La Route du Cidre: Getting Buzzed on Normandy’s Cider Trail |William O’Connor |September 22, 2013 |DAILY BEAST

demi-sec

/ (ˌdɛmɪˈsɛk) /

(of wine, esp champagne) medium-sweet

C20: from French, from demi half + sec dry