Ineed an adverb containing the greek root mer or mar

Mermaid,Marine,Marsh and Marfire are some.

Mere,Marine, Merman. There's some more to help ( not reading all that was said )

Currently, as of february 2016, an american traveling in france would be by the exchange rate. the weakness of the euro and the strength of the us dollar means that items in france cost less to an american than they otherwise would. of course, if this trend reverses and the us dollar weakens and the euro strengthens, such as was happening in early 2008, an american traveling in france would have an adverse experience because items would cost relatively more.

D. providing for public safety