Noun
あまず
この間、給食の時に生徒が何故か机の中から甘酢の瓶を取り出したのよ。
During lunch the other day somehow one of the students pulled a bottle of sweet vinegar out of her desk.
Sweet vinegar is sweet vinegar. Them Japanese love their sweet things.
The reading is 甘い plus 酢, combined together. It's the kun'yomi readings, but that's probably because we're combing two words into one. It also changes the す to ず so, remember that.