IPA: /prəˈsɪbər/
KK: /prəˈsɪbər/
A person or thing that officially forbids or condemns something.
The proscriber issued a statement against the use of harmful substances.
Proscriber is formed from "pro-" (meaning before) and "scribere" (meaning to write). The word refers to someone who writes down or records something beforehand, often in a formal or official context.
Think of someone 'writing' ('scribere') something 'before' ('pro-') — that's why a proscriber is someone who writes down rules or regulations in advance.