The story
From ultraleft + -ism. By surface analysis, ultra- + leftism.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: The ideology of the ultraleft, associated with left communism, characterized by a rejection of both social democracy and state socialism in favor of traditional Marxism, including opposition to Leninism and the vanguard party. Full definition →
From ultraleft + -ism. By surface analysis, ultra- + leftism.
Etymology from Wiktionary, CC BY-SA 4.0.