Note: this list of places includes island features such as summits, but not islands as such.
KnockaffertaghMountainCnoc Eachmarcaigh A name in Irish (prob. Ir. Cnoc Eachmarcaigh [PDT], 'hill of Eachmarcach')MayoCounty in Connacht Province, in Arderin List, Quartzites and psammitic schists. Bedrock
Height:517mOS 1:50k Mapsheet: 23&31Grid Reference: G04715 04887 Place visited by 64 members. Recently by: Oileanach, Haulie, justynagru, ilenia, John.geary, eamonoc, FrankMc1964, Ulsterpooka, Fergalh, Lauranna, Reeks2011, millsd1, Geo, eoghancarton, PeakPaul I have visited this place: NO (You need to be a logged-in member to change this.)
Eachmarcach is a personal name meaning 'horse-rider'. It is the origin of the surname Mac Eachmharcaigh, which can be anglicised Cafferkey or McCafferty and is a common surname in Mayo [De Bhulbh]. It would seem that this is the most likely origin of Knockaffertagh, though an Irish form for the name has not been found to support this. The t in Knockaffertagh is not a problem as the anglicisation McCafferty shows that such a pronunciation of Eachmarcach is possible. The hill is named Ummeraufferty on William Bald's map of Co. Mayo (1830), which appears to be a similar name with Ir. iomaire, 'ridge' as the first element instead of cnoc.
Knockaffertagh is the 510th highest place in Ireland. Linkback: https://mountainviews.ie/summit/417/