
1) Early steam locomotive
Found on
https://www.crosswordclues.com/clue/northumbrian
[locomotive] Northumbrian was an early steam locomotive built by Robert Stephenson in 1830 and used at the opening of the Liverpool and Manchester Railway. It was the last of Stephenson`s 0-2-2 locomotives in the style of Rocket, but it introduced several innovations. It was the first locomotive to have the Stephenson type firebox incorpora...
Found on
http://en.wikipedia.org/wiki/Northumbrian_(locomotive)

• (a.) Of or pertaining to Northumberland in England. • (n.) A native or inhabitant of Northumberland. • (n.) A native or inhabitant of Northumberland. • (a.) Of or pertaining to Northumberland in England.
Found on
http://thinkexist.com/dictionary/meaning/northumbrian/

(from the article `Old English language`) Four dialects of the Old English language are known: Northumbrian in northern England and southeastern Scotland; Mercian in central England; Kentish ... The River Humber was an important boundary, and the Anglian-speaking region developed two speech groups: to the north of the river, Northumbria...
Found on
http://www.britannica.com/eb/a-z/n/56

The Old English dialect spoken in the kingdom of Northumbria (i.e., north of the Umber river).
Found on
http://www.encyclo.co.uk/local/22385
North·um'bri·an adjective Of or pertaining to Northumberland in England. --
noun A native or inhabitant of Northumberland.
Found on
http://www.encyclo.co.uk/webster/N/34

of or pertaining to Northumbria, Northumberland, or the inhabitants or dialect of either.
Found on
https://www.infoplease.com/dictionary/northumbrian
No exact match found.