出典:Wiktionary
Coined by L. Sprague de Camp from Latin credo (“I believe”) + -phile (“liker, lover”).
First known use is in a personal letter from de Camp to James Randi (which is thought to still exist in Randi's archives but is not readily available for study).
The word "credophile" and the adjective form "credophilic" were used by L. Sprague de Camp at least as early as 1952 in "Lands Beyond" which he co-authored with Willie Ley (De Camp, L. Sprague & Willie Ley. Lands Beyond. NY: Rinehart, 1952, pp. 268, 272
credophile (複数形 credophiles)