The story
From Trubetzkoy + -ian.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Of or relating to Nikolai Trubetzkoy (Russian: Никола́й Трубецко́й; 1890–1938), Russian linguist and historian, widely considered to be the founder of morphophonology. Full definition →
From Trubetzkoy + -ian.
Etymology from Wiktionary, CC BY-SA 4.0.