Wiktionary
boanthropy
n. The delusion that one is an ox.
Wikipedia
Boanthropy
Boanthropy is a psychological disorder in which a human believes himself or herself to be a bovine.
Usage examples of "boanthropy".
The great, good-tempered fellow, as uncouth in its hairiness as Nebuchadnezzar during his lamentable but salutary attack of boanthropy, is regarded with a good deal of suspicion, if not dread, though it pays for its lodging by reason of its large appetite, which latter statement seems self-contradictory.