What does the verse say about the Giborim?
Radak: Their entire engagement and Gevurah is to drink wine. Their strength is not seen to fight enemies. Drinking wine and delicacies bring weakness - "[Oy Lecha Eretz
Who are "Anshei Chayil"?
Radak: This is like Giborim. Chayil is strength, like "ha'Me'azreni Chayil la'Milchamah" (Tehilim 18:40). The Targum of Ko'ach is Chila.
Radak citing Targum Yonasan: They are [rich] people with much property. This is like "Asah Li Es ha'Chayil" (Devarim 8:17).
What is the meaning of "Limsoch Shechar"?
Rashi: They mix wine 1 . Fixing a drink is called Masach.
Rashi (Mishlei 9:2): It is improper to drink strong wine without diluting it with water.