Tredinnick (EN) / Tredhinek (KW)

Parish: 
St Neot
Elements: 

-ek

Meaning: 
abounding in [suffix]

din

Meaning: 
fort, castle

tre

Meaning: 
farmstead, settlement
Elements notes: 
tre 'farmstead, settlement' + din 'fort' + -ek adjectival suffix
Historic forms: 
Tredinac 1201, Trethynek 1345.