IPA: /ɪnˈtrɛnʧmənt/
KK: /ɪnˈtrɛnʧmənt/
A situation or condition where something is firmly established or protected, often making it difficult to change or remove.
The entrenchment of certain beliefs in society can make it hard to introduce new ideas.
Entrenchment → It is formed from "en-" (meaning to cause to be in) and "trench" (from Old French *trenchier*, meaning to cut or to dig). The word refers to the act of digging in or establishing a strong position, often in a military context.
Think of 'digging in' ('trench') to create a strong position ('en-') — that's what entrenchment means.