▁Illustr ated ▁G ael ic ▁English ▁Dictionary , ▁which ▁was ▁partly ▁based ▁on ▁a ▁previous ▁dictionary ▁but ▁supp lement ed ▁by ▁extensive ▁material ▁from ▁other ▁sources ▁and ▁D w elly ' s ▁own ▁field work . ▁It ▁remains ▁the ▁dictionary ▁seen ▁as ▁the ▁most ▁author itative ▁to ▁this ▁day . ▁Vari ous ▁other ▁small ▁to ▁medium ▁diction aries ▁followed . ▁ ▁Tim eline ▁▁ 1 9 0 1 ▁Illustr ated ▁G ael ic ▁English ▁Dictionary ▁by ▁Edward ▁D w elly ▁( based ▁partly ▁on ▁Mac Le od ▁& ▁D ew ar ) ▁▁ 1 9 1 2 ▁Am ▁B ri ath ra chan ▁Be ag ▁by ▁Mal col m ▁Mac F ar lane ▁▁ 1 9 2 5 ▁G ael ic ▁Dictionary ▁by ▁Mal col m ▁Mac L enn an ▁▁ 1 9 3 2 ▁Pr on oun cing ▁Dictionary ▁of ▁Scottish ▁G ael ic ▁by ▁Henry ▁Cy ril ▁Die ck hoff ▁▁ 1 9 5 8 ▁G ael ic ▁W ords ▁and ▁Express ions ▁from ▁South ▁U ist ▁and ▁Er isk ay ▁by ▁Rev . ▁All an ▁Mac Donald ▁▁ 1 9 7 9 ▁Ab air ▁Fac ail , ▁a ▁pocket - dictionary ▁by ▁John ▁Mac Donald ▁and ▁Ron ald ▁R ent on ▁▁ 1 9 8 1 ▁The ▁New ▁English - G ael ic ▁Dictionary ▁by ▁Der ick ▁Thom son ▁▁ 1 9 9 1 ▁Append ix ▁to ▁D w elly ' s ▁G ael ic - English ▁Dictionary ▁by ▁Douglas ▁C ly ne ▁( ed .) ▁▁ 1 9 9