Scapegoat or escape goat

Scapegoat is a closed compound word. Escape goat is an eggcorn. A compound word is a word derived from two or more separate words used together to create another word. Compound words are new words that have a different meaning than the definitions of the original words. Compound words are usually composed of two nouns, […]
from Grammarist
https://grammarist.com/eggcorns/scapegoat-or-escape-goat/