ailurophile (n.)
"cat lover," 1931, with -phile "one that loves" + Greek ailouros "cat" (probably only "wildcat," as "domestic cats were not found in the Greek world" [Beekes]), which is of unknown origin. Usually explained as a compound of aiolos "quick-moving" + oura "tail," hence "with moving tail," which is plausible despite some phonetic difficulties, according to Beekes, who also notes "the word may well have been adapted by folk etymology ...."