There's some truth to it, at least after the 18th century and the rise of Western Europe's obsession with classical Greece.

Here's a speech in English that aside of articles and preposition, uses only words of Greek origin:

Kyrie, I eulogize the archons of the Panethnic Numismatic Thesaurus and the Ecumenical Trapeza for the orthodoxy of their axioms, methods and policies, although there is an episode of cacophony of the Trapeza with Hellas. With enthusiasm we dialogue and synagonize at the synods of our didymous organizations in which polymorphous economic ideas and dogmas are analyzed and synthesized. Our critical problems such as the numismatic plethora generate some agony and melancholy. This phenomenon is characteristic of our epoch. But, to my thesis, we have the dynamism to program therapeutic practices as a prophylaxis from chaos and catastrophe. In parallel, a Panethnic unhypocritical economic synergy and harmonization in a democratic climate is basic. I apologize for my eccentric monologue. I emphasize my euharistia to you, Kyrie to the eugenic and generous American Ethnos and to the organizers and protagonists of his Amphictyony and the gastronomic symposia.

-Xenophon Zolotas