Where does “loch” come from?

Loch comes from Scottish Gaelic loch, from Old Irish loch, from Proto-Indo-European lókus, ultimately deriving from the Proto-Indo-European root klek-.

loch (English): A lake; A bay or arm of the sea; Alternative form...

Definitions

  1. A lake; A bay or arm of the sea; Alternative form...

Ancestry of “loch”, step by step

loch traces back through two separate lines of ancestry.

via Middle English lough

StepLanguageWordMeaning
1Middle Englishloughlake; loch
2Scottish Gaeliclochlake; arm of the sea; fjord
3Old Irishlochlake; inlet of the sea; black, dark
4Proto-Celticlokulake, pool
5Proto-Indo-Europeanlókuspond, pool

via Irish loch

StepLanguageWordMeaning
1Irishlochlake

Words derived from “loch

Every word from Proto-Indo-European lókusEvery word from Proto-Celtic lokuEvery word from Old Irish loch