It was probably John Walters who persuaded Rhys Thomas , printer (q.v.) , to set up at Cowbridge the first printing press in Glamorgan . He published A Dissertation on the Welsh Language , 1771 , and Dwy Bregeth , 1772 , but his chief work was the large English-Welsh dictionary . This was based on the unpublished dictionary of William Gambold (q.v.) , but Walters was assiduous in collecting material of all kinds. The work was printed at the Cowbridge press , part one appearing on 5 April 1770 . Fourteen parts were issued between 1770 and 1783 , but the remainder could not be printed until 1794 , when Owen Jones ( Owain Myfyr , q.v.) arranged for the work to be completed in London . Walters coined a large number of words which have become established in the Welsh vocabulary , and he sought to show how to translate English idioms into Welsh . Two editions were published during the last century and this was the work which Daniel Silvan Evans (q.v.) had at his elbow when he was compiling his English-Welsh dictionary .
Emeritus Professor Griffith John Williams, M.A., (1892-1963), Gwaelod-y-garth, Cardiff
Published date: 1959