English
Spenglerian
From Spengler + -ian.
Formed from Spengler + -ian
Middle High German speng(e)ler
German Spengler ‘a surname, Spengler, originating as an…’
English Spengler
Today it means
adj Of or relating to Oswald Spengler (1880–1936), German historian and philosopher of history, who postulated that human cultures and civilizations are akin to biological entities, with limited and predictable lifespans.
Language periods are conventional ranges, not dates for this word.
Etymograph / Spenglerian