IPA: //maɪˈɡreɪnər//
KK: /maɪˈɡreɪnər/
A person who suffers from severe headaches known as migraines.
As a migraineur, she often had to cancel plans due to her debilitating headaches.
**Migraineur** → The word is derived from "migraine" (from Old French *migrain*, meaning a severe headache) and the suffix "-eur" (meaning one who). A migraineur is one who suffers from migraines or severe headaches.
Think of someone who suffers from a 'migraine' — the suffix '-eur' indicates a person, so a migraineur is simply a person who experiences migraines.