a. [f. TRI- + L. lingua tongue, after lingual; cf. L. trilinguis in same sense.] Speaking or using, written or expressed in, or relating to three languages.
1829. Morn. Post, 7 July, 2/3. Advices from Mr. James Burton, dated Cairo, April 17th, state that the Trilingual Stone which he discovered in 1826, in the ruinous part of a mosque, has been given to the French.
1834. Encycl. Brit. (ed. 7), VIII. 560/1. The trilingual, or rather trigrammatic stone of Rosetta.
1851. Layard, Pop. Acc. Discov. Nineveh, Introd. 13. What are called the Trilingual inscriptions of Persia.
1904. Morley, in 19th Cent., Oct., 578. Whatever we may think of … the trilingual heresy [that worship could be offered only in three languages].
1907. Athenæum, 7 Dec., 719/1. The literature of England up to the end of the fourteenth century is trilingual, English, Latin, or Anglo-Norman.
