Placenamesni.orgthe history behind our place-names

Historic Forms

Old FormRef. DateReference
O Neill do ghabail Chaisdeil na Dergi1497AU iii 424
Ro gabhadh Caislén na Deircce lais (O/Neill)1497AFM iv 1234
Suidhe fa Chaislén na Deircce [siege, castle taken1505AFM v 1284
suidhe fa Caislen na Derge.. 7an caislen doghabail1505AU iii 474
no find Caislen na Deirge1507AFM v 1292-8
roind do chis Chois-Derge 7 Luirg [O''Neill1527AU iii 564n
gu port na garbharda 7 gu Cois Deirgi1537AU iii 614n
Caislen na Deircce [taken by Niall Garbh O''Donnell1600AFM vi 2226
Castle Dirge1608Sur. Ulst. 156
Cast. Dirgh1610Speed's Ulster
Castlannadergy1610CPR Jas I 164b
Castlederge1619CPR Jas I 429a
Ye ... Towne of Darrage1655cCiv. Surv. p.348
(?)Eastlederg1666HMR Tyr. (2) 254
Caislén na Deirge. Parochialis ecclesia1680cTop. Frag. II [87]
Castel Dearg, skirts of Urney1693Bishop. Der. ii 151 $309
Derg-bridge, village, barony of Omagh1802Stat. Sur. Tyr. (McEvoy) 160
Dergbridge T.1836OSM v 136
Port na Garbharda ""port of the rough heights""1895AU iii 614n
Caisleán na Deirge "" castle on the Derg""1999Cel. Ulst. Tds 6
~Caisleán na Deirge ""castle of the (river) Derg""1999Dict. Ulst. PN 38