from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A very rare disorder in which the patient sweats blood and/or blood pigments, usually resulting from extreme physical and/or mental stress.
- n. Bloody sweat; sweating blood.
From Greek αιματοίδρουν (haimatohidroun) to sweat blood: haimato-, "blood" + hidroun, "to sweat". (Wiktionary)
I do not mean the scientific evidence for Christ (although there is some, eg haematidrosis, the sweating of blood in Gethsemane before the Crucifixion) as science was non existent 2000 years ago.