"thick soup," 1560s, from French potage "soup, broth" (see pottage, which is an earlier English borrowing of the same French word and originally also was spelled with one -t-). Related: Potager.
Entries linking to potage
pottage n.
"soup, meat-broth," c. 1200, potage, "thick stew or soup," literally "food prepared in a pot, that which is put in a pot," from Old French potage "vegetable soup, food cooked in a pot," from pot "pot" (see pot (n.1)). The spelling with double -t- is from early 15c.; the later spelling with one -t- is a later borrowing (see potage).