Carnjewey aka Carnjewey Point (EN) / Karn Jewi (KW)

Hundred: 
Elements: 

jewi

Meaning: 
?Obscure

karn

Meaning: 
crag, tor, cairn
Elements notes: 
<karn> ‘crag, tor, cairn’ + <jewi> obscure – possibly the Cornish personal name - Dewi
Historic forms: 
Carnjewy 1746 Carnjewey Pt. 1856 (OS 1856) Carnjewey Beach 1888 (OS 1888)