The proper name “Achird” seems to have been applied in recent times and has no clear meaning, one unsupported source suggesting “girdle.” Better really to know it by its Greek letter name of Eta Cas.
Marx developed a catarrh that kept him in ill health for the last 15 months of his life. It eventually brought on the bronchitis and pleurisy that killed him in London on 14 March 1883, when he died a stateless person at age 64.
Achird (stars.astro.illinois.edu) ACHIRD (Eta Cassiopeiae). At almost fourth magnitude (3.44) and faint to the eye, and not a part of the traditional outline of Cassiopeia, Achird is often neglected.