this meaning and most of the following are to be referred to the galenical doctrine of the four humors in man. See humor. According to the old physicians, these humors, when unduly tempered, produce a disordered state of body and mind.
3. a morbid state of the animal system; indisposition; malady; disorder; at present chiefly applied to diseases of brutes; as, a distemper in dogs; the horse distemper; the horn distemper in cattle. They heighten distempers to diseases. (Suckling)
4. Morbid temper of the mind; undue predominance of a passion or appetite; mental derangement; bad temper; ill humor. Little faults proceeding on distemper. (Shak) Some frenzy distemper had got into his head. (Bunyan)
5. Political disorder; tumult.
6. a preparation of opaque or body colours, in which the pigments are tempered or diluted with weak glue or size (cf. Tempera) instead of oil, usually for scene painting, or for walls and ceilings of rooms. a painting done with this prep c95 aration.
2. to derange the functions of, whether bodily, mental, or spiritual; to disorder; to disease. The imagination, when completely distempered, is the most incurable of all disordered faculties. (Buckminster)
Origin: OF. Destemprer, destremper, to distemper, f. Detremper to soak, soften, slake (lime); pref. Des- (L. Dis-) _ OF. Temprer, tremper, f. Tremper, L. Temperare to mingle in due proportion. See temper, and cf. Destemprer.