“Castle of the Lark,” “Fort of the Lark”
Caerlaverlock
The important harbour over whose ownership it is thought the battle of Arthuret was fought.
Notes
Caer is a Welsh name for a wall or mound for defence – a city or castle wall, a fortress; and laverock may be derived from the Welsh word llefrog, which means lark in English.
The root to this word might be cau, to shut up, to close, to fence, to enclose with a hedge. Cue means a field enclosed with hedges. When the Britons began to build cities they built a fortified wall to surround them, which were called caer.
The name Chester is a Saxonized form of the Latin castruni, a fort (and one of the few words recognised as directly inherited from the Roman invaders), is a common prefix and suffix in English place-names, such as: Colchester, Manchester, Chesterford, Chesterton. In the Danish and Anglian districts “Chester” is replaced with “caster”, such as: Doncaster and Lancaster, but both forms are allied to casirum, a Latinization of the Celtic caer.
See also
King Arthur’s Twelve Battles | The Legend of King Arthur