Dunsmuir

English

Etymology

From Old English personal name Dynn, genitive case Dynnes Scots muir (“moor”).

Alternatively from either:

1. Scottish Gaelic dùn (“fort, fortress”) muir (“sea, ocean”), 'the fort by the sea'.
2. Old Welsh Din Maur (“great fort”).

The collative s in the proposed Celtic sources could come via Scots on analogy with words such as Dunsmore or Dunston, in which cases the -s is a remnant of a genitive case ending.

The town in California is named after San Francisco businessman Alexander Dunsmuir.

Proper noun

Dunsmuir

1. A city in Siskiyou County, California, United States.
2. A habitational surname from Scots.