mumpsimus /mumpˈsi-məs/

1. A view or opinion stubbornly held, even when shown to be misguided
2. A person holding such a view, or one adhering stubbornly to old ways

• exodists
• exodus
• exoduses
• exoenzyme
• exoenzymes
• exoergic
• ex off.
• ex officio
• exogamic
• exogamies
• exogamous
• exogamy
• exogen
• exogenetic
• exogenous
• exogenously
• exogens
• exomion
• exomis
• exomises
• exon
• Exon.
• exonerate
• exonerated
• exonerates