Where does “Knocklong” come from?

Knocklong (English) comes from Irish Cnoc Loinge, from Irish cnoc, from Old Irish cnocc, from Proto-Celtic *knukkos — protuberance; hill.

Ancestry of “Knocklong”, step by step

StepLanguageWordMeaning
1IrishCnoc Loinge—
2Irishcnochill, mount
3Old Irishcnocchill; lump; swelling
4Proto-Celtic*knukkosprotuberance; hill
Every word from Proto-Celtic *knukkos →Every word from Old Irish cnocc →Every word from Irish cnoc →