How to pronounce Trifine?

French Pronunciation:
"tree"-FEEN
FEEN - rhymes with "SEEN"

The French "r" is another sound that doesn't exist in English and is difficult for English-speakers to master. It is pronounced in the throat in the same place where the English "k" sound is pronounced, except you pronounce it by slightly constricting the throat then pushing air through it. The vowels sounds in both syllables rhyme with "need".

Reference - http://en.allexperts.com/q/French-Language-1800/Pronouncing-French-Names.htm