Meaning
冷奴 (ひややっこ, Hiya-yakko) is Hiya-yakko, a Japanese food (tofu dishes).
What is Hiya-yakko?
Hiyayakko is a dish made with chilled tofu and toppings. It is also known as hiyakko or yakko-dōfu . Hiya means cold, and yakko refers to the servants of samurai during the Edo period in Japan. The choice of toppings on the tofu vary among households and restaurants, but a standard combination is chopped green onion with katsuobushi (dried skipjack tuna flakes) and soy sauce. Other toppings include: perilla leaf, yuzu rind, daikon radish, sliced myoga ginger, grated ginger, sliced okra, plum paste, and mustard.