During the Saracenic occupation it was trilingual.
"Sketches and Studies in Italy and Greece, Vol III."
John Symonds
The Latin Church has its holy Latin, and a trilingual bible of "Hebrew, Latin, Greek," was said by pious fathers of that Church, to represent "Christ crucified between two thieves."
"Travels in the Great Desert of Sahara, in the Years of 1845 and 1846"
James Richardson
The Canterbury Tales had shown of what high uses the English language was capable, but the curiously trilingual condition of literature still continued.
"Brief History of English and American Literature"
Henry A. Beers