St Mawgan (EN) / Pluwvaugan (KW)

Hundred: 
Notes: 
Amended Pluw Vaugan --> Pluwvaugan
Elements: 

Maugan

This refers to the name of a person: 
name

pluw

Meaning: 
parish
Elements notes: 
<pluw> 'parish' + <Maugan> personal name