Altdorfer

== German == === Etymology === Altdorf +‎ -er === Pronunciation === === Noun === Altdorfer m (strong, genitive Altdorfers, plural Altdorfer, feminine Altdorferin) a native or inhabitant of Altdorf ==== Declension ==== === Adjective === Altdorfer (indeclinable, no predicative form) (relational) of Altdorf ==== Usage notes ==== Words like this are considered indeclinable adjectives, as noted by Duden, DWDS and other modern German references, but are capitalized because they originated as genitive plurals of substantives. See -er for more.