Origins of Irish Place Names

From Eyewitness Travel Guides: Ireland 1995
'cause I love this stuff

Ar, ard = high, height
Ass, ess = waterfall
A, ah, ath = ford
Bal, bally = town
Beg = small
Ben = peak, mountain
Carrick, carrig = rock
Cashel = stone fort
Crock, knock = hill
Curra, curragh = marsh
Darry, derry = oak tree
Dun = castle
Eden = hill brow
Innis, inch = island
Inver = river mouth
Isk, iska = water
Glas, glass = green
Glen, glyn = valley
Kil, kill = church
Lough = lake, sea inlet
Mona, mone = peat bog
Mor = great, large
Mullen, mullin = mill
Rath, raha = ring fort
Slieve = mountain
Toom = burial ground
Tul, tulagh = small hill