Definition of "tung"

I am of this opinion that our own tung shold be written cleane and pure, unmixt and unmangeled with borowing of other tunges, …

1557 July 16, John Cheke, “"Inkhorn" terms: Sir John Cheke”, in Univ of Victoria, Canada‎, retrieved 2012-09-29

… ever exposed to their envy, and the tung of slander …

1790, Noah Webster, “The Founders' Constitution Vol 1, Chap 15, Doc 44”, in Univ. of Chicago‎, retrieved 2012-09-29

Our common orthography is incorrect; the true spelling is tung.

1832, Noah Webster, Edmund Henry Barker, A Dictionary of the English Language‎, Digitized edition, Black and Young, published 2010, page 542

… words to be spoken with the understanding, that I may teach others also, than myriads of words, in a tung... In the law, it hath been written, That, with other tungs and other lips I will speak to this people, and then they will not hear ...

1848, Jonathan Morgan, The New Testament of our Lord and Saviour Jesus Christ‎, Digitized edition, SH Colesworthy, published 2008, page 215

If they've got anything to say which they want you to hear, let 'em say it out; if not, hold their tungs.

1872, Hugh Rowley, Sage stuffing for green goslings; or, Saws for the goose and saws‎, Digitized edition, published 2006, page 159

English has strength, simplicity, conciseness, capacity for taking words freely from other tungs, and best of all has the greatest literature the world has yet produced.

2002 Fall, Richard Whelan, quoting Melvil Dewey, “The American Spelling Reform Movement”, in Verbatim, The Language Quarterly‎, volume XXVII, number 4, page 5