Roman Priest of a Particular Deity

Puzzle 11 of Famous Philosophers Hard Pack

Question is: Roman Priest of a Particular Deity

and the answer is: FLAMEN

Word Meaning:

FLAMEN — (historical, Ancient Rome) A priest devoted to the service of a particular god, from whom he received a distinguishing epithet. The most honored were those of Jupiter, Mars, and Quirinus, called respectively Flamen Dialis, Flamen Martialis, and Flamen Quirinalis.

Definitions from Wiktionary.