IPA: /θəˈlæsəˌkræt/
KK: /θəˈlæsəˌkræt/
A person who rules or has control over the sea or maritime territories.
The ancient thalassocrat commanded a powerful navy that dominated the waters.
Thalassocrat → It is formed from "thalassa" (Greek, meaning sea) and "kratos" (Greek, meaning power or rule). The word describes someone who holds power or dominion over the sea.
Imagine someone who has 'power' ('kratos') over the 'sea' ('thalassa') — that's what a thalassocrat is.
No commonly confused words.