Keith

English

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Keith

Wikipedia

As a Scottish surname, from the placename in Moray, Scotland, from Scottish Gaelic Cèith, meaning "wood" or "from the battleground," which is probably borrowed from Pictish *ᚉᚓᚈ (cēt) meaning "wood", or a forest, from Proto-Brythonic *koɨd.^[1]^[2]
As a German surname, from Middle High German kit (“sprout, offspring”) (compare kint).

Keith (countable and uncountable, plural Keiths)

1815, Sir Walter Scott, The Lord of the Isles:
Behind them, screened in sheltering wood,
The gallant Keith, Lord Marshal, stood:
His men-at-arms bear mace and lance,
And plumes that wave, and helms that glance.
2005, Andrew L. Brown, Overcoming Adversity: Your Dreams Matter., →ISBN, page 35:
My middle name, Keith, is music to my ears. It's like jazz on a cool summer night. My very closest family members call me Keith for short.

^ Patrick Hanks, Flavia Hodges, Kate Hardcastle, editor (2006) “Keith”, in A Dictionary of First Names, second edition, Oxford University Press, →ISBN.
^ Hanks, Patrick, editor (2003), “Keith”, in Dictionary of American Family Names, volume 2, New York City: Oxford University Press, →ISBN, page 289.

From English Keith, probably from Celtic.

Keith