About the Authors

D. Geraint Lewis

Originally from Ynys-y-bwl, Geraint Lewis was educated in Pontypridd Boys Grammar School and University College Aberystwyth. He is a prolific lexicographer, and author of many extremely useful Welsh language books such as Geiriadur Cymraeg Gomer, Geiriadur Gomer i'r Ifanc (winner of the Tir Na N'og award for the best children's book of the year (except fiction), Geiriadur Cynradd Gomer, Y Llyfr Berfau, Pa Arddodiad?, Y Treigladur, and Geiriau Lletchwith. The definitive collection of Welsh folk songs, Cân Di Bennill, is the fruit of his musical interests.

Nudd Lewis

Following his period at Penweddig Comprehensive School, Aberystwyth, Nudd Lewis was a Management Science student at Swansea University. He joined the Welsh Language Board as a finance and information technology officer, and attended cynghanedd classes, taking part in a few Talwrn y Beirdd contests. Since leaving the Welsh Language Board, he has followed a career in the field of software development, reaching the position of senior project manager for the development of insurance and pension software, before establishing Gwerin - which develops bilingual software for business and education. He has written dwy dictionaries with his father, D. Geraint Lewis - Geiriadur Cymraeg Gomer and Reading Welsh: An Essential Companion. He enjoys experimenting with technology and with utilising technology to make the specialities of the Welsh language more accessible.

Bibliography

This resource is based on the following bibliography.

image of Geiriadur Cymrag Gomer

Geiriadur Cymraeg Gomer

D. Geraint Lewis, Nudd Lewis
Gomer, 2016, 2020

A contemporary and essential dictionary for Welsh speakers and learners alike containing over 45,000 Welsh definitions, 38,000 English words and 12,000 technical terms.

image of Reading Welsh

Reading Welsh - An Essential Companion

D. Geraint Lewis, Nudd Lewis
Gomer, 2014

A comprehensive companion-dictionary of common Welsh words and their various forms (mutated, feminine and plural) arranged especially for Welsh learners and non-Welsh speakers.

image of D.I.Y. Welsh

D.I.Y. Welsh - Your step-by-step guide to Building Welsh Sentences

D. Geraint Lewis
Gomer, 2018

A step-by-step guide to building your own Welsh sentences, with exercises and glossary.

image of Ar Flaen fy Nhafod

Ar Flaen fy Nhafod - Casgliad o Ymadroddion Cymraeg

D. Geraint Lewis
Gomer, 2012

A valuable volume by a word-guru, being a collection of a variety of entertaining Welsh idioms, words and sayings.

image of Yr Ansoddeiriau

Yr Ansoddeiriau - A Comprehensive Collection of Welsh Adjectives

D. Geraint Lewis
Y Lolfa, 2021

An useful volume introducing the different forms of the Welsh adjective; for all users of the Welsh language.

image of Yr Arddodiad

Yr Arddodiad - A Comprehensive Collection of Welsh Prepositions

D. Geraint Lewis
Y Lolfa, 2021

A highly interesting booklet comprising a comprehensive and useful list of Welsh prepositions which often cause writers difficulty.

image of Y Geiriau Lletchwith

Y Geiriau Lletchwith - A Check-List of Irregular Word Forms and Spelling

D. Geraint Lewis
Gomer, 1997

A comprehensive and useful list of irregular and awkward words in Welsh, being nouns and adjectives, verbs and adverbs which often cause writers hesitation relating to spelling, accents and hyphens.

image of Berfau

Berfau - A Check-List of Welsh Verbs

D. Geraint Lewis
Gomer, 1995, Y Lolfa 2021

A bilingual volume containing the full conjugations of over one thousand Welsh verbs which will be an asset to the Welsh speaker and learner alike.

image of Geiriadur Cymrag Gomer

Y Treigladur - A Check-List of Welsh Mutations

D. Geraint Lewis
Gomer, 2018

An alphabetical list of Welsh words that cause a mutation, and a summary of the main rules of mutation, together with an explanation of the grammatical terms used