The story
From transatlantic + -ism.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Support for the relationship between Britain and America, especially in literature and culture, traditionally based upon a shared history, a common language, shared principles of legal philosophy, a commonality of religious beliefs, and kinship ties. Full definition →
From transatlantic + -ism.
Etymology from Wiktionary, CC BY-SA 4.0.