You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "where does the last name kincaid come from?" whose answer is Scottish.
Each document should contain about 30 words, and these documents should contain useful information.

Query: origin of surname Kincaid
Useful Output:

Doc 1: Kincaid is a Scottish surname that has evolved into a given name, particularly in the United States. Kincaid originates from Gaelic words
Doc 2: The Kincaid surname finds its origins in the lands of Kincaid in Campsie, Stirlingshire, Scotland. The place name is believed to have Gaelic roots.
Doc 3: The name Kincaid is primarily a gender-neutral name of Scottish origin that means From Kincaith. This place name is first recorded in 1238 as Kincaith and in
Doc 4: The name Kincaid, derived from the Scottish Gaelic word ceann cid, meaning from Kincaith, has a rich origin steeped in Scottish history.
Doc 5: This masculine moniker was originally a surname used by the clan who lived in Kincaid, in Stirlingshire, Scotland. It has over 50 different spellings.