IPA: /ɪnˈteɪlər/
KK: /ɪnˈteɪlər/
A person who creates a legal arrangement that restricts the inheritance of property to specific heirs.
The entailer decided to pass the family estate only to his eldest son.
Entailer → It is formed from "entail" (from Old French *entailler*, meaning to cut into) and the suffix "-er" (meaning a person who). An entailer is a person who establishes an entailment, which is a legal arrangement regarding the inheritance of property.
Think of someone who 'cuts into' the rules of inheritance — 'entail' means to cut into the ownership, and '-er' indicates a person involved in that process.