Page 79 of Fluent Forever's "Awesome Word List" for Japanese gives 僧侶 as the Japanese word for "priest", listed just after "教会" for "church". How suitable is it for "priest", if at all?
Doing a google image search for "僧侶" mainly gave Buddhists (though that could be because more Chinese-speakers and Japanese-speakers are Buddhists than Christians), the English language Wiktionary translates it as Buddhist monks, while jisho.org says "priest; monk - Buddhist term" (seemingly saying that both "priest" and "monk" are Buddhist terms). The Japanese language's disambiguation page for 僧侶 has mention of Christianity.